diff --git a/src/Auth/LDAP.hs b/src/Auth/LDAP.hs
index 1990b40a3..2019e2d37 100644
--- a/src/Auth/LDAP.hs
+++ b/src/Auth/LDAP.hs
@@ -59,8 +59,10 @@ findUser conf@LdapConf{..} ldap ident retAttrs = fromMaybe [] <$> findM (assertM
       [ ldapUserEmail'        Ldap.:= Text.encodeUtf8 ident'
       | ident' <- [ident, [st|#{ident}@lmu.de|], [st|#{ident}@fraport.de|]]
       , ldapUserEmail' <- toList ldapUserEmail
+      -- ] ++
+      -- [ ldapUserDisplayName   Ldap.:= Text.encodeUtf8 ident
       ] ++
-      [ ldapUserDisplayName   Ldap.:= Text.encodeUtf8 ident
+      [ ldapUserFraportPersonalnummer Ldap.:= Text.encodeUtf8 ident  -- for Fraport, userDisplayname has pattern "Surname, Firstnames"
       ]
 
 findUserMatr :: LdapConf -> Ldap -> Text -> [Ldap.Attr] -> IO [Ldap.SearchEntry]