diff --git a/unittests/structs_minimal.hpp b/unittests/structs_minimal.hpp
index 745fdd66b..57ccd4999 100644
--- a/unittests/structs_minimal.hpp
+++ b/unittests/structs_minimal.hpp
@@ -251,4 +251,4 @@ void test_structs_minimal()
   }
 }
 
-#endif // CEREAL_TEST_STACK_H_
+#endif // CEREAL_TEST_STRUCTS_MINIMAL_H_