diff --git a/stepmania/src/RageDisplay_OGL_Extensions.cpp b/stepmania/src/RageDisplay_OGL_Extensions.cpp
index edabb21e17..6430ec8470 100644
--- a/stepmania/src/RageDisplay_OGL_Extensions.cpp
+++ b/stepmania/src/RageDisplay_OGL_Extensions.cpp
@@ -1,5 +1,7 @@
 #include "global.h"
 
+#define __glext_h_
+
 #if defined(WIN32)
 #include <windows.h>
 #endif