diff --git a/tests/list_manipulation.cpp b/tests/list_manipulation.cpp
index 5100c61..b71ee7b 100644
--- a/tests/list_manipulation.cpp
+++ b/tests/list_manipulation.cpp
@@ -5,7 +5,7 @@
  *
 */
 
-#include "trompeloeil_doctest.h"
+#include "trompeloeil_doctest.hpp"
 #include "parser.hpp"
 #include "static_schema.hpp"