diff --git a/src/osgWrappers/serializers/osg/Drawable.cpp b/src/osgWrappers/serializers/osg/Drawable.cpp
index 02fa5130d..ff8a39e04 100644
--- a/src/osgWrappers/serializers/osg/Drawable.cpp
+++ b/src/osgWrappers/serializers/osg/Drawable.cpp
@@ -52,4 +52,9 @@ REGISTER_OBJECT_WRAPPER( Drawable,
         UPDATE_TO_VERSION_SCOPED( 142 )
         ADD_HEXINT_SERIALIZER( NodeMask, 0xffffffff );  // _nodeMask
     }
+
+    {
+        UPDATE_TO_VERSION_SCOPED( 145 )
+        ADD_BOOL_SERIALIZER( CullingActive, true );  // _cullingActive
+    }
 }