diff --git a/ucs-4.0-0/management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py b/ucs-4.0-0/management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
index ebff70a..ae50c21 100644
--- a/ucs-4.0-0/management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
+++ b/ucs-4.0-0/management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
@@ -1830,8 +1830,8 @@ class simpleComputer( simpleLdap ):
 										( 'zoneName', univention.admin.uldap.explodeDn( zoneDn, 1 )[ 0 ]),\
 										( 'aAAARecord', [ ip ]),\
 										( 'relativeDomainName', [ name ])])
-				except univention.admin.uexceptions.objectExists, dn:
-					raise univention.admin.uexceptions.dnsAliasRecordExists, dn
+				except univention.admin.uexceptions.objectExists as exc:
+					raise univention.admin.uexceptions.dnsAliasRecordExists(str(exc))
 				# TODO: check if zoneDn really a forwardZone, maybe it is a container under a zone
 				zone = univention.admin.handlers.dns.forward_zone.object( self.co, self.lo, self.position, zoneDn )
 				zone.open()
@@ -1856,8 +1856,8 @@ class simpleComputer( simpleLdap ):
 										( 'zoneName', univention.admin.uldap.explodeDn( zoneDn, 1 )[ 0 ]),\
 										( 'ARecord', [ ip ]),\
 										( 'relativeDomainName', [ name ])])
-				except univention.admin.uexceptions.objectExists, dn:
-					raise univention.admin.uexceptions.dnsAliasRecordExists, dn
+				except univention.admin.uexceptions.objectExists as exc:
+					raise univention.admin.uexceptions.dnsAliasRecordExists(str(exc))
 				# TODO: check if zoneDn really a forwardZone, maybe it is a container under a zone
 				zone = univention.admin.handlers.dns.forward_zone.object( self.co, self.lo, self.position, zoneDn )
 				zone.open()