diff --git a/rosapps/applications/screensavers/butterflies/butterflies.c b/rosapps/applications/screensavers/butterflies/butterflies.c
index 4a178f23179..906e53038b3 100644
--- a/rosapps/applications/screensavers/butterflies/butterflies.c
+++ b/rosapps/applications/screensavers/butterflies/butterflies.c
@@ -5,11 +5,9 @@
 #include <stdlib.h>
 #include <GL/gl.h>
 #include <GL/glu.h>
+#include <GL/glext.h>
 #include "resource.h"
 
-/* missing declare from gl.h */
-#define GL_BGR_EXT                        0x80E0
-
 HINSTANCE		hInstance;			// Holds The Instance Of The Application
 
 GLuint texture[3];	                //stores texture objects and display list