diff --git a/src/video/bwindow/SDL_BWin.h b/src/video/bwindow/SDL_BWin.h
index 24b98d9f7..bbbbf9b52 100644
--- a/src/video/bwindow/SDL_BWin.h
+++ b/src/video/bwindow/SDL_BWin.h
@@ -30,6 +30,7 @@
 #include <InterfaceKit.h>
 #include <be/game/DirectWindow.h>
 #if SDL_VIDEO_OPENGL
+#include "SDL_opengl.h"
 #include <be/opengl/GLView.h>
 #endif
 #include <support/UTF8.h>