diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3b222e42..2894e13f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -21,4 +21,6 @@
 add_executable(example example.cpp)
 target_link_libraries(example cxxopts)
 
-set_property(TARGET example PROPERTY CXX_STANDARD 17)
+target_compile_features(example PRIVATE cxx_std_17)
+target_compile_options(example PRIVATE
+    "$<$<CXX_COMPILER_ID:MSVC>:/utf-8;>")
diff --git a/test/options.cpp b/test/options.cpp
index bb90f825..647934c5 100644
--- a/test/options.cpp
+++ b/test/options.cpp
@@ -848,11 +848,11 @@ TEST_CASE("Optional value", "[optional]")
 
     CHECK(result.as_optional<int>("int"));
     CHECK(result.as_optional<float>("float"));
-    CHECK(result.as_optional<string>("string"));
+    CHECK(result.as_optional<std::string>("string"));
 
     CHECK(*result.as_optional<int>("int") == 42);
     CHECK(*result.as_optional<float>("float") == 3.141);
-    CHECK(*result.as_optional<string>("string") == "Hello");
+    CHECK(*result.as_optional<std::string>("string") == "Hello");
   }
 
   SECTION("Unavailable") {
@@ -866,7 +866,7 @@ TEST_CASE("Optional value", "[optional]")
 
     CHECK(!result.as_optional<int>("int"));
     CHECK(!result.as_optional<float>("float"));
-    CHECK(!result.as_optional<string>("string"));
+    CHECK(!result.as_optional<std::string>("string"));
   }
 
 }