@ -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());