diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index e757397..94c3327 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -41,6 +41,6 @@ foreach(name IN ITEMS test_splitter test_parser test_converter test_extractions
     target_link_libraries("${name}" PRIVATE ssp::ssp fast_float
                                             doctest::doctest)
     target_compile_definitions(
-        "${name}" PRIVATE DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN _CMAKE_GITHUB_CI)
+        "${name}" PRIVATE DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN CMAKE_GITHUB_CI)
     add_test(NAME "${name}" COMMAND "${name}")
 endforeach()
diff --git a/test/test_helpers.hpp b/test/test_helpers.hpp
index 0437935..b7f362f 100644
--- a/test/test_helpers.hpp
+++ b/test/test_helpers.hpp
@@ -6,7 +6,7 @@
 #include <vector>
 #include <filesystem>
 
-#ifdef _CMAKE_GITHUB_CI
+#ifdef CMAKE_GITHUB_CI
 #include <doctest/doctest.h>
 #else
 #include <doctest.h>