diff --git a/src/Demos/osgcallback/osgcallback.cpp b/src/Demos/osgcallback/osgcallback.cpp
index a24341072..31b62a156 100644
--- a/src/Demos/osgcallback/osgcallback.cpp
+++ b/src/Demos/osgcallback/osgcallback.cpp
@@ -141,7 +141,7 @@ class InsertCallbacksVisitor : public osg::NodeVisitor
 
    public:
    
-        InsertCallbacksVisitor():NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
+        InsertCallbacksVisitor():osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
         {
         }