diff --git a/src/render/MBlur.cpp b/src/render/MBlur.cpp
index b852b912..568a0bc1 100644
--- a/src/render/MBlur.cpp
+++ b/src/render/MBlur.cpp
@@ -1,5 +1,7 @@
 #define WITHWINDOWS
+#ifndef LIBRW
 #define WITHD3D
+#endif
 #include "common.h"
 #ifndef LIBRW
 #include <d3d8caps.h>