diff --git a/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp b/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp
index 14ff699edc..389b3bb572 100644
--- a/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp
+++ b/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp
@@ -2748,7 +2748,7 @@ namespace detail {
 
     template <class Json>
     auto make_update_expression(const typename Json::string_view_type& path,
-        const jsoncons::jsonpath::custom_functions<Json>& funcs = jsoncons::jsonpath::custom_functions<Json>())
+        const jsoncons::jsonpath::custom_functions<typename jsonpath_traits<Json>::value_type>& funcs = jsoncons::jsonpath::custom_functions<typename jsonpath_traits<Json>::value_type>())
     {
         using jsonpath_traits_type = jsoncons::jsonpath::jsonpath_traits<Json>;
 
@@ -2766,7 +2766,7 @@ namespace detail {
     template <class Json, class TempAllocator>
     auto make_update_expression(const allocator_set<typename Json::allocator_type,TempAllocator>& alloc_set,
         const typename Json::string_view_type& path,
-        const jsoncons::jsonpath::custom_functions<Json>& funcs, std::error_code& ec)
+        const jsoncons::jsonpath::custom_functions<typename jsonpath_traits<Json>::value_type>& funcs, std::error_code& ec)
     {
         using jsonpath_traits_type = jsoncons::jsonpath::jsonpath_traits<Json>;
 
diff --git a/test/jsonpath/src/jsonpath_make_expression_tests.cpp b/test/jsonpath/src/jsonpath_make_expression_tests.cpp
index faed2e9536..73a9b798d0 100644
--- a/test/jsonpath/src/jsonpath_make_expression_tests.cpp
+++ b/test/jsonpath/src/jsonpath_make_expression_tests.cpp
@@ -51,14 +51,14 @@ TEST_CASE("jsonpath make_expression test")
         ]
     }
     )";
-#if 0
+
     SECTION("test 1")
     {
         int count = 0;
 
         const json doc = json::parse(input);
 
-        auto expr = jsoncons::jsonpath::make_update_expression<json>("$.books[*]");
+        auto expr = jsoncons::jsonpath::make_update_expression<const json>("$.books[*]");
 
         auto callback = [&](const jsonpath::json_location<std::string>& /*location*/, const json& book)
         {
@@ -73,7 +73,7 @@ TEST_CASE("jsonpath make_expression test")
         CHECK(count == 1);
         CHECK_FALSE(doc["books"][3].contains("price"));
     }
-#endif
+
     SECTION("test 2")
     {
         int count = 0;