diff --git a/gtest/catalog.cc b/gtest/catalog.cc
index 3edc821..39ab3ac 100644
--- a/gtest/catalog.cc
+++ b/gtest/catalog.cc
@@ -19,10 +19,10 @@ Step a step with {int} and {string}
 Step another step with {word} and {}
 )";
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "a step with {int} and {string}"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "another step with {word} and {}"));
 
   EXPECT_EQ(expected, cuke::catalog::as_readable_text());
@@ -38,13 +38,13 @@ When something happens
 Then we expect a lot
 )";
   cuke::registry().push_step(
-      step([](const cuke::value_array& values, const auto&, const auto&) {},
+      step([](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
            "a given step", step::type::given));
   cuke::registry().push_step(
-      step([](const cuke::value_array& values, const auto&, const auto&) {},
+      step([](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
            "something happens", step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array& values, const auto&, const auto&) {},
+      step([](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
            "we expect a lot", step::type::then));
 
   EXPECT_EQ(expected, cuke::catalog::as_readable_text());
@@ -67,31 +67,31 @@ Step h
 )";
 
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "a",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "b",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "b",
            step::type::then));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "c",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "c",
            step::type::given));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "d",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "d",
            step::type::given));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "e",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "e",
            step::type::then));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "f",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "f",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "g",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "g",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "h",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "h",
            step::type::step));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "i",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "i",
            step::type::when));
 
   EXPECT_EQ(expected, cuke::catalog::as_readable_text());
@@ -124,10 +124,10 @@ TEST_F(catalog, as_json_1)
 })";
 
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "a step with {int} and {string}"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "another step with {word} and {}"));
 
   EXPECT_EQ(expected, cuke::catalog::as_json());
@@ -141,22 +141,22 @@ TEST_F(catalog, as_json_2)
       R"({"steps_catalog":[{"definition":"lets start with {}, {double} and {int}","function":"func3","type":"Given","var_types":["anonymous","double","int"]},{"definition":"lets start with {float} and {double}","function":"func4","type":"Given","var_types":["float","double"]},{"definition":"something with {string} and {long} happens","function":"func2","type":"When","var_types":["string","long"]},{"definition":"{float} added to {double}","function":"func5","type":"When","var_types":["float","double"]},{"definition":"step with {byte} and {word}","function":"func1","type":"Then","var_types":["byte","word"]},{"definition":"we have a lot {},{double},{int},{word},{string},{string},{int},{int},{string},{float},{byte}","function":"func6","type":"Then","var_types":["anonymous","double","int","word","string","string","int","int","string","float","byte"]}]})";
 
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "step with {byte} and {word}", step::type::then, "func1"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "something with {string} and {long} happens", step::type::when, "func2"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "lets start with {}, {double} and {int}", step::type::given, "func3"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "lets start with {float} and {double}", step::type::given, "func4"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "{float} added to {double}", step::type::when, "func5"));
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array& values, const auto&, const auto&) {},
+      [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
       "we have a lot "
       "{},{double},{int},{word},{string},{string},{int},{int},{string},{float},"
       "{byte}",
diff --git a/gtest/file_io.cc b/gtest/file_io.cc
index 2965d18..ec4e5d3 100644
--- a/gtest/file_io.cc
+++ b/gtest/file_io.cc
@@ -24,9 +24,9 @@ class file_io : public ::testing::Test
   void SetUp() override
   {
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&) {},
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) {},
         "a step with {int} and {string}"));
   }
   void TearDown() override
diff --git a/gtest/hooks.cc b/gtest/hooks.cc
index 67445b4..60aa1ea 100644
--- a/gtest/hooks.cc
+++ b/gtest/hooks.cc
@@ -16,7 +16,7 @@ class hooks_before : public ::testing::Test
         cuke::internal::hook([]() { hook_called = true; }));
 
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         {
           ASSERT_TRUE(hook_called);
           step_called = true;
@@ -58,7 +58,7 @@ class hooks_after : public ::testing::Test
         cuke::internal::hook([]() { hook_called = true; }));
 
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         {
           ASSERT_FALSE(hook_called);
           step_called = true;
@@ -99,7 +99,7 @@ class hooks_after_tagged : public ::testing::Test
         cuke::internal::hook([]() { hook_called = true; }, "@tag"));
 
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         {
           ASSERT_FALSE(hook_called);
           step_called = true;
@@ -159,7 +159,7 @@ class hooks_before_all : public ::testing::Test
         cuke::internal::hook([]() { hook_called = true; }));
 
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         {
           ASSERT_TRUE(hook_called);
           step_called = true;
@@ -204,7 +204,7 @@ class hooks_after_all : public ::testing::Test
         cuke::internal::hook([]() { hook_called = true; }));
 
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         {
           ASSERT_FALSE(hook_called);
           step_called = true;
diff --git a/gtest/registry.cc b/gtest/registry.cc
index 5b572aa..4588d3f 100644
--- a/gtest/registry.cc
+++ b/gtest/registry.cc
@@ -29,7 +29,7 @@ class registry_tests : public ::testing::Test
 TEST_F(registry_tests, steps)
 {
   cuke::registry().push_step(cuke::internal::step(
-      [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+      [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
   EXPECT_EQ(cuke::registry().steps().size(), 1);
 }
 
@@ -71,12 +71,12 @@ TEST_F(registry_tests, default_order)
 {
   using namespace cuke::internal;
   cuke::registry().push_step(step(
-      [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+      [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {},
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {},
            "another step"));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {},
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {},
            "a given step", step::type::given));
 
   ASSERT_EQ(cuke::registry().steps().size(), 3);
@@ -89,12 +89,12 @@ TEST_F(registry_tests, sort_by_type_1)
 {
   using namespace cuke::internal;
   cuke::registry().push_step(step(
-      [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+      [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {},
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {},
            "another step"));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {},
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {},
            "a given step", step::type::given));
 
   ASSERT_EQ(cuke::registry().steps().size(), 3);
@@ -109,31 +109,31 @@ TEST_F(registry_tests, sort_by_type_2)
 {
   using namespace cuke::internal;
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "a",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "b",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "b",
            step::type::then));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "c",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "c",
            step::type::given));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "d",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "d",
            step::type::given));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "e",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "e",
            step::type::then));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "f",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "f",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "g",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "g",
            step::type::when));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "h",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "h",
            step::type::step));
   cuke::registry().push_step(
-      step([](const cuke::value_array&, const auto&, const auto&) {}, "i",
+      step([](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "i",
            step::type::when));
 
   ASSERT_EQ(cuke::registry().steps().size(), 9);
diff --git a/gtest/run_scenario_hooks.cc b/gtest/run_scenario_hooks.cc
index 8679cd6..e69fcfb 100644
--- a/gtest/run_scenario_hooks.cc
+++ b/gtest/run_scenario_hooks.cc
@@ -24,7 +24,7 @@ class run_scenario_hooks : public ::testing::Test
     cuke::registry().push_hook_after_step(hook([]() { ++after_step_calls; }));
 
     cuke::registry().push_step(step(
-        [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
   }
 
   static std::size_t before_calls;
@@ -86,11 +86,11 @@ class run_scenario_hook_skip : public ::testing::Test
     cuke::registry().clear();
 
     cuke::registry().push_step(step(
-        [](const cuke::value_array&, const auto&, const auto&) { ++calls; },
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) { ++calls; },
         "a step"));
 
     cuke::registry().push_step(step(
-        [](const cuke::value_array&, const auto&, const auto&) { ++calls; },
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) { ++calls; },
         "a step with {int}"));
 
     cuke::registry().push_hook_before(
diff --git a/gtest/run_scenarios.cc b/gtest/run_scenarios.cc
index 7a3470f..9d603f9 100644
--- a/gtest/run_scenarios.cc
+++ b/gtest/run_scenarios.cc
@@ -11,7 +11,7 @@ class run_scenarios_1 : public ::testing::Test
     call_count = 0;
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         { run_scenarios_1::call_count++; }, "a step"));
   }
 
@@ -103,7 +103,7 @@ class run_scenarios_2 : public ::testing::Test
     expected_string = "";
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array& values, const auto&, const auto&)
+        [](const cuke::value_array& values, const auto&, const auto&, const auto&)
         {
           run_scenarios_2::expected_int = values[0].as<unsigned int>();
           run_scenarios_2::expected_string = values[1].as<std::string>();
@@ -159,7 +159,7 @@ class run_scenarios_3 : public ::testing::Test
     call_count = 0;
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array& values, const auto&, const auto&)
+        [](const cuke::value_array& values, const auto&, const auto&, const auto&)
         { ++call_count; }, "a step with {int}"));
   }
   static std::size_t call_count;
@@ -200,7 +200,7 @@ class run_scenarios_4 : public ::testing::Test
     anonymous_value = "";
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array& values, const auto&, const auto&)
+        [](const cuke::value_array& values, const auto&, const auto&, const auto&)
         {
           ASSERT_EQ(values.size(), 2);
           word_value = values.at(0).as<std::string>();
diff --git a/gtest/run_scenarios_tags.cc b/gtest/run_scenarios_tags.cc
index 4eb9e3e..db7176b 100644
--- a/gtest/run_scenarios_tags.cc
+++ b/gtest/run_scenarios_tags.cc
@@ -27,10 +27,10 @@ class run_scenarios_tags : public ::testing::Test
     test_value = 0;
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         { run_scenarios_tags::call_count++; }, "a step"));
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array& values, const auto&, const auto&)
+        [](const cuke::value_array& values, const auto&, const auto&, const auto&)
         {
           run_scenarios_tags::test_value = values.at(0).as<std::size_t>();
           run_scenarios_tags::call_count++;
diff --git a/gtest/stdout_print.cc b/gtest/stdout_print.cc
index bab3978..7d5fe41 100644
--- a/gtest/stdout_print.cc
+++ b/gtest/stdout_print.cc
@@ -21,12 +21,12 @@ class stdout_print : public ::testing::Test
     cuke::results::test_results().clear();
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) {}, "a step"));
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         { cuke::is_true(false); }, "this fails"));
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array& values, const auto&, const auto&) {},
+        [](const cuke::value_array& values, const auto&, const auto&, const auto&) {},
         "a step with {int} and {string}"));
   }
 
diff --git a/gtest/test_results.cc b/gtest/test_results.cc
index ef3f03f..97d0cce 100644
--- a/gtest/test_results.cc
+++ b/gtest/test_results.cc
@@ -13,9 +13,10 @@ class test_results_1 : public ::testing::Test
     cuke::results::test_results().clear();
     cuke::registry().clear();
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&) {}, "a step"));
+        [](const cuke::value_array&, const auto&, const auto&, const auto&) {},
+        "a step"));
     cuke::registry().push_step(cuke::internal::step(
-        [](const cuke::value_array&, const auto&, const auto&)
+        [](const cuke::value_array&, const auto&, const auto&, const auto&)
         { cuke::is_true(false); }, "this fails"));
   }
 };
diff --git a/src/defines.hpp b/src/defines.hpp
index 05ac899..2d4867d 100644
--- a/src/defines.hpp
+++ b/src/defines.hpp
@@ -10,6 +10,8 @@
 #define _STEP(function_name, step_definition, type)                           \
   void function_name(                                                         \
       [[maybe_unused]] const ::cuke::value_array& __cuke__values__,           \
+      [[maybe_unused]] const std::vector<::cuke::internal::param_info>&       \
+          __cuke__parameter_info__,                                           \
       [[maybe_unused]] const std::vector<std::string>& __cuke__doc__string__, \
       [[maybe_unused]] const ::cuke::table& __cuke__table__);                 \
   namespace                                                                   \
@@ -25,6 +27,8 @@
   }                                                                           \
   void function_name(                                                         \
       [[maybe_unused]] const ::cuke::value_array& __cuke__values__,           \
+      [[maybe_unused]] const std::vector<::cuke::internal::param_info>&       \
+          __cuke__parameter_info__,                                           \
       [[maybe_unused]] const std::vector<std::string>& __cuke__doc__string__, \
       [[maybe_unused]] const ::cuke::table& __cuke__table__)
 
diff --git a/src/get_args.hpp b/src/get_args.hpp
index 3413e7c..3213616 100644
--- a/src/get_args.hpp
+++ b/src/get_args.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include "param_info.hpp"
 #include "value.hpp"
 
 namespace cuke::internal
@@ -59,13 +60,15 @@ inline conversion get_arg(const cuke::value_array::iterator begin,
   }
 }
 
-inline conversion get_arg(const cuke::value_array& values, std::size_t idx,
-                          std::string_view file, std::size_t line)
+inline conversion get_arg(const cuke::value_array& values,
+                          const std::vector<param_info>& parameter,
+                          std::size_t idx, std::string_view file,
+                          std::size_t line)
 {
   std::size_t zero_based_idx = idx - 1;
   if (zero_based_idx < values.max_size())
   {
-    return conversion(values[zero_based_idx]);
+    return conversion(values[zero_based_idx + parameter[idx].offset]);
   }
   else
   {
@@ -167,8 +170,9 @@ class string_or_vector
  * @return The value from the index in the given step
  */
 
-#define CUKE_ARG(index) \
-  cuke::internal::get_arg(__cuke__values__, index, __FILE__, __LINE__)
+#define CUKE_ARG(index)                                                      \
+  cuke::internal::get_arg(__cuke__values__, __cuke__parameter_info__, index, \
+                          __FILE__, __LINE__)
 
 /**
  * @def CUKE_DOC_STRING()
diff --git a/src/value.hpp b/src/value.hpp
index ed3f1bf..ac38de8 100644
--- a/src/value.hpp
+++ b/src/value.hpp
@@ -121,6 +121,7 @@ namespace cuke::internal
 {
 
 using step_callback = void (*)(const cuke::value_array& args,
+                               const std::vector<param_info>& info,
                                const std::vector<std::string>& doc_string,
                                const cuke::table& t);
 class step
@@ -157,7 +158,7 @@ class step
   void call(const value_array& values,
             const std::vector<std::string>& doc_string, const table& t) const
   {
-    m_callback(values, doc_string, t);
+    m_callback(values, m_type_info, doc_string, t);
   }
   type step_type() const noexcept { return m_type; }