fix group backend

diff --git a/lib/group/backend.php b/lib/group/backend.php
index d0bc970da734833fd4dd50d90913911eb9d34533..af6c53c803577cdcb5145d2d6c2922ddbb8efdea 100644 (file)
--- a/lib/group/backend.php
+++ b/lib/group/backend.php
@@ -89,7 +89,7 @@ abstract class OC_Group_Backend {
         * @return bool
         */
        public function groupExists($gid){
-               if(!$backend->implementsActions(OC_GROUP_BACKEND_GET_GROUPS)){
+               if(!$this->implementsActions(OC_GROUP_BACKEND_GET_GROUPS)){
                        return false;
                }
                return in_array($gid, $this->getGroups());