Index: modules/univention/s4connector/__init__.py
===================================================================
--- modules/univention/s4connector/__init__.py	(Revision 78658)
+++ modules/univention/s4connector/__init__.py	(Arbeitskopie)
@@ -570,8 +570,7 @@
 
 	def _save_rejected_ucs(self, filename, dn):
 		_d = ud.function('ldap._save_rejected_ucs')
-		modstring_dn = univention.s4connector.s4.compatible_modstring(dn)
-		self._set_config_option('UCS rejected', filename, modstring_dn)
+		self._set_config_option('UCS rejected', filename, dn)
 
 	def _get_rejected_ucs(self, filename):
 		_d = ud.function('ldap._get_rejected_ucs')