diff --git a/examples/osgbluemarble/osgbluemarble.cpp b/examples/osgbluemarble/osgbluemarble.cpp
index 60f14301d..26b577412 100644
--- a/examples/osgbluemarble/osgbluemarble.cpp
+++ b/examples/osgbluemarble/osgbluemarble.cpp
@@ -13,6 +13,7 @@
 #include <osg/Geometry>
 #include <osg/State>
 #include <osg/ClusterCullingCallback>
+#include <osg/io_utils>
 
 #include <osgDB/ReadFile>
 #include <osgDB/WriteFile>