--- a/misc/migration/3.15.0_Any.py	Tue Jul 17 17:16:28 2012 +0200
+++ b/misc/migration/3.15.0_Any.py	Tue Jul 17 12:24:46 2012 +0200
@@ -4,7 +4,7 @@
     config = source.dictconfig
     host = config.pop('host', u'ldap')
     protocol = config.pop('protocol', u'ldap')
-    source.set_attributes(url=u'%s://%s' % (protocol, host))
+    source.cw_set(url=u'%s://%s' % (protocol, host))
     source.update_config(skip_unknown=True, **config)
 
 commit()