diff --git a/components/sceneutil/glextensions.cpp b/components/sceneutil/glextensions.cpp
index eb7783c45f..310823a8ea 100644
--- a/components/sceneutil/glextensions.cpp
+++ b/components/sceneutil/glextensions.cpp
@@ -1,5 +1,7 @@
 #include "glextensions.hpp"
 
+#include <osg/GraphicsContext>
+
 namespace SceneUtil
 {
     namespace