diff --git a/include/osg/Drawable b/include/osg/Drawable
index 0ec94bb37..e44d78a23 100644
--- a/include/osg/Drawable
+++ b/include/osg/Drawable
@@ -219,7 +219,7 @@ class SG_EXPORT Drawable : public Object
             virtual void drawImplementation(State& state,const osg::Drawable* drawable) const { drawImmediateMode(state,const_cast<Drawable*>(drawable)); }
 
             /** do customized draw code.*/
-            virtual void drawImmediateMode(State& state,osg::Drawable* drawable) const = 0;
+            virtual void drawImmediateMode(State& state,osg::Drawable* drawable) const {};
 #else
             /** do customized draw code.*/
             virtual void drawImplementation(State& state,const osg::Drawable* drawable) const = 0;