diff -r ddde6cf856a1 -r 107421e426de vregistry.py
--- a/vregistry.py	Thu Aug 13 13:08:27 2009 +0200
+++ b/vregistry.py	Fri Aug 14 00:02:08 2009 +0200
@@ -314,7 +314,7 @@
         except AttributeError:
             vname = obj.__class__.__name__
         self.debug('registered appobject %s in registry %s with id %s',
-                   vname, registryname, oid)
+                   vname, registryname, oid or obj.id)
         self._loadedmods[obj.__module__]['%s.%s' % (obj.__module__, oid)] = obj
 
     def unregister(self, obj, registryname=None):