diff --git a/reactos/lib/rosrtl/string/resstr.c b/reactos/lib/rosrtl/string/resstr.c
index 24bab660a80..11b4b79e86a 100644
--- a/reactos/lib/rosrtl/string/resstr.c
+++ b/reactos/lib/rosrtl/string/resstr.c
@@ -1,5 +1,4 @@
-#define NTOS_MODE_USER
-#include <ntos.h>
+#include <windows.h>
 
 /* 
  * Utility to measure the length of a string resource