diff --git a/dal/ungleich_ldap.py b/dal/ungleich_ldap.py
index 74f102f..3ff81f5 100644
--- a/dal/ungleich_ldap.py
+++ b/dal/ungleich_ldap.py
@@ -91,14 +91,16 @@ class LdapManager:
         logger.debug("{uid} does not exist. Using it".format(uid=uidNumber))
         self._set_max_uid(uidNumber)
         try:
-            conn.add(
-                ("uid={uid}," + settings.LDAP_CUSTOMER_DN).format(uid=user),
+            uid = user.encode("utf-8")
+            conn.add("uid={uid},{customer_dn}".format(
+                    uid=uid, customer_dn=settings.LDAP_CUSTOMER_DN
+                ),
                 ["inetOrgPerson", "posixAccount", "ldapPublickey"],
                 {
-                    "uid": [user.encode("utf-8")],
+                    "uid": [uid],
                     "sn": [lastname.encode("utf-8")],
                     "givenName": [firstname.encode("utf-8")],
-                    "cn": ["{} {}".format(firstname, lastname).encode("utf-8")],
+                    "cn": [uid],
                     "displayName": ["{} {}".format(firstname, lastname).encode("utf-8")],
                     "uidNumber": [str(uidNumber)],
                     "gidNumber": [str(settings.LDAP_CUSTOMER_GROUP_ID)],