diff --git a/examples/osgbluemarble/osgbluemarble.cpp b/examples/osgbluemarble/osgbluemarble.cpp
index 58b71c11a..ba18f5bee 100644
--- a/examples/osgbluemarble/osgbluemarble.cpp
+++ b/examples/osgbluemarble/osgbluemarble.cpp
@@ -12,6 +12,7 @@
 #include <osg/Texture2D>
 #include <osg/Geometry>
 #include <osg/State>
+#include <osg/ClusterCullingCallback>
 
 #include <osgDB/ReadFile>
 #include <osgDB/WriteFile>