diff --git a/reactos/apps/tests/combo/combotst.c b/reactos/apps/tests/combo/combotst.c
index a60c17c3b2d..614b42ed4ca 100644
--- a/reactos/apps/tests/combo/combotst.c
+++ b/reactos/apps/tests/combo/combotst.c
@@ -11,7 +11,7 @@
 
 //#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
-#include "Utils.h"
+#include "utils.h"
 
 #define CONTROLCLASS  "COMBOBOX"  /* the class name */
 #define CONTROLCLASSW L"COMBOBOX" /* the class name in unicode*/