diff --git a/include/osgGA/StateSetManipulator b/include/osgGA/StateSetManipulator
index 30ce9cd32..ad12fe148 100644
--- a/include/osgGA/StateSetManipulator
+++ b/include/osgGA/StateSetManipulator
@@ -45,6 +45,7 @@ public:
 
         /** get the attached a STATESTATE.*/
         virtual const osg::StateSet * getStateSet() const;
+        
 
         /** Handle events, return true if handled, false otherwise.*/
         virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);        
@@ -86,6 +87,8 @@ protected:
 
         virtual ~StateSetManipulator();
 
+        void clone();
+
         osg::ref_ptr<osg::StateSet> _stateset;
 
         bool _initialized;