diff --git a/tests/ExtraTests/CMakeLists.txt b/tests/ExtraTests/CMakeLists.txt
index 0c5600ab..8eaf3a56 100644
--- a/tests/ExtraTests/CMakeLists.txt
+++ b/tests/ExtraTests/CMakeLists.txt
@@ -556,6 +556,7 @@ add_executable(AmalgamatedTestCompilation
   ${CATCH_DIR}/extras/catch_amalgamated.cpp
 )
 target_include_directories(AmalgamatedTestCompilation PRIVATE ${CATCH_DIR}/extras)
+target_compile_features(AmalgamatedTestCompilation PRIVATE cxx_std_14)
 
 add_test(NAME AmalgamatedFileTest COMMAND AmalgamatedTestCompilation)
 set_tests_properties(