diff --git a/reactos/lib/gdi32/include/precomp.h b/reactos/lib/gdi32/include/precomp.h
index 141f82ceb03..1accfed4187 100644
--- a/reactos/lib/gdi32/include/precomp.h
+++ b/reactos/lib/gdi32/include/precomp.h
@@ -1,4 +1,6 @@
+#include <wine/windef.h>
 #include <windows.h>
+#include <ddraw.h>
 #include <ddentry.h>
 #include <string.h>
 #include <win32k/kapi.h>