diff --git a/src/osg/StateSet.cpp b/src/osg/StateSet.cpp
index c1445f621..ed644ff62 100644
--- a/src/osg/StateSet.cpp
+++ b/src/osg/StateSet.cpp
@@ -25,6 +25,7 @@
 #include <osg/Depth>
 
 #include <osg/TextureCubeMap>
+#include <osg/TextureRectangle>
 
 #include <set>