diff --git a/gfx/include/Cg/cgGL.h b/gfx/include/Cg/cgGL.h
index 01e7af8a4c..ab400e9f62 100644
--- a/gfx/include/Cg/cgGL.h
+++ b/gfx/include/Cg/cgGL.h
@@ -103,7 +103,11 @@
 
 #ifndef CGGL_NO_OPENGL
 # ifdef __APPLE__
+#if MAC_OS_X_VERSION_10_7
+#  include <OpenGL/gl3.h>
+#else
 #  include <OpenGL/gl.h>
+#endif
 # else
 #  include <GL/gl.h>
 # endif