diff --git a/include/osg/CopyOp b/include/osg/CopyOp
index e24dce44c..d96445404 100644
--- a/include/osg/CopyOp
+++ b/include/osg/CopyOp
@@ -30,6 +30,7 @@ class Drawable;
 class Array;
 class PrimitiveSet;
 class Shape;
+class NodeCallback;
 
 /** Copy Op(erator) used to control whether shallow or deep copy is used
   * during copy construction and clone operation.*/
@@ -52,6 +53,7 @@ class OSG_EXPORT CopyOp
             DEEP_COPY_PRIMITIVES        = 1<<8,
             DEEP_COPY_SHAPES            = 1<<9,
             DEEP_COPY_UNIFORMS          = 1<<10,
+            DEEP_COPY_NODECALLBACKS     = 1<<11,
             DEEP_COPY_ALL               = 0x7FFFFFFF
         };
 
@@ -72,6 +74,7 @@ class OSG_EXPORT CopyOp
         virtual PrimitiveSet*   operator() (const PrimitiveSet* primitives) const;
         virtual Shape*          operator() (const Shape* shape) const;
         virtual Uniform*        operator() (const Uniform* shape) const;
+        virtual NodeCallback*   operator() (const NodeCallback* nodecallback) const;
 
     protected:
     
diff --git a/src/osg/CopyOp.cpp b/src/osg/CopyOp.cpp
index c3d876414..b71dcd9f4 100644
--- a/src/osg/CopyOp.cpp
+++ b/src/osg/CopyOp.cpp
@@ -65,3 +65,23 @@ StateAttribute* CopyOp::operator() (const StateAttribute* attr) const
 }
 
 
+NodeCallback* CopyOp::operator() (const NodeCallback* nc) const
+{
+    if (nc && _flags&DEEP_COPY_NODECALLBACKS)
+    {
+        // deep copy the full chain of callback
+        osg::NodeCallback* first = dynamic_cast<osg::NodeCallback*>(nc->clone(*this));
+        first->setNestedCallback(0);
+        nc = nc->getNestedCallback();
+        while (nc) 
+        {
+            osg::NodeCallback* ucb = dynamic_cast<osg::NodeCallback*>(nc->clone(*this));
+            ucb->setNestedCallback(0);
+            first->addNestedCallback(ucb);
+            nc = nc->getNestedCallback();
+        }
+        return first;
+    }
+    else
+        return const_cast<NodeCallback*>(nc);
+}
diff --git a/src/osg/Node.cpp b/src/osg/Node.cpp
index 45b5555dc..a4d3f8dac 100644
--- a/src/osg/Node.cpp
+++ b/src/osg/Node.cpp
@@ -74,10 +74,10 @@ Node::Node(const Node& node,const CopyOp& copyop):
         _boundingSphere(node._boundingSphere),
         _boundingSphereComputed(node._boundingSphereComputed),
         _parents(), // leave empty as parentList is managed by Group.
-        _updateCallback(node._updateCallback),
+        _updateCallback(copyop(node._updateCallback.get())),
         _numChildrenRequiringUpdateTraversal(0), // assume no children yet.
         _numChildrenRequiringEventTraversal(0), // assume no children yet.
-        _cullCallback(node._cullCallback),
+        _cullCallback(copyop(node._cullCallback.get())),
         _cullingActive(node._cullingActive),
         _numChildrenWithCullingDisabled(0), // assume no children yet.
         _numChildrenWithOccluderNodes(0),