diff --git a/src/osgSim/LightPointDrawable.h b/src/osgSim/LightPointDrawable.h
index cc5d6462c..4299a9289 100644
--- a/src/osgSim/LightPointDrawable.h
+++ b/src/osgSim/LightPointDrawable.h
@@ -97,7 +97,7 @@ class OSGSIM_EXPORT LightPointDrawable : public osg::Drawable
     
         virtual bool computeBound() const;
 
-        ~LightPointDrawable() {}
+        virtual ~LightPointDrawable() {}
         
         osg::Endian                     _endian;