diff --git a/apps/user_ldap/js/ldapFilter.js b/apps/user_ldap/js/ldapFilter.js
index d0fee6db7fc54c6eabd8ea3c578ece317186cdc4..0d6916479445a5553dafef26dc9170b025c5b7b9 100644
--- a/apps/user_ldap/js/ldapFilter.js
+++ b/apps/user_ldap/js/ldapFilter.js
@@ -50,7 +50,8 @@ LdapFilter.prototype.compose = function() {
 			}
 		},
 		function (result) {
-			// error handling
+			console.log('LDAP Wizard: could not compose filter. '+
+				'Please check owncloud.log');
 		}
 	);
 }