--- a/server/schemahooks.py	Thu Aug 20 17:33:05 2009 +0200
+++ b/server/schemahooks.py	Thu Aug 20 17:44:27 2009 +0200
@@ -736,8 +736,7 @@
 
 def after_del_eetype(session, eid):
     # workflow cleanup
-    session.execute('DELETE State X WHERE NOT X state_of Y')
-    session.execute('DELETE Transition X WHERE NOT X transition_of Y')
+    session.execute('DELETE Workflow X WHERE NOT X workflow_of Y')
 
 
 def before_del_ertype(session, eid):