diff --git a/simgear/screen/RenderTexture.h b/simgear/screen/RenderTexture.h
index 78d56f6f..5d68a02c 100644
--- a/simgear/screen/RenderTexture.h
+++ b/simgear/screen/RenderTexture.h
@@ -55,7 +55,7 @@
 #endif
 #include SG_GL_H
 #if defined( __MACH__)
-#  include <OpenGL/CGLTypes.h>
+#  include <OpenGL/OpenGL.h>
 #endif
 #ifndef _WIN32
 #  include SG_GLX_H