diff --git a/src/osgEarth/MapNode.cpp b/src/osgEarth/MapNode.cpp
index c08b17be14..b704c7bd86 100644
--- a/src/osgEarth/MapNode.cpp
+++ b/src/osgEarth/MapNode.cpp
@@ -315,10 +315,10 @@ MapNode::~MapNode()
 
     ModelLayerVector modelLayers;
     _map->getModelLayers( modelLayers );
-    //Remove our model callback from any of the model layers in the map
+    //Remove our model callback from any of the model layers in the map    
     for (osgEarth::ModelLayerVector::iterator itr = modelLayers.begin(); itr != modelLayers.end(); ++itr)
     {
-        itr->get()->removeCallback(_modelLayerCallback.get() );
+        this->onModelLayerRemoved( itr->get() );        
     }
 }