diff --git a/webapp/controller/OutAppCircuitController.class.php b/webapp/controller/OutAppCircuitController.class.php
index c0611738..70015159 100644
--- a/webapp/controller/OutAppCircuitController.class.php
+++ b/webapp/controller/OutAppCircuitController.class.php
@@ -19,6 +19,7 @@ use models\Circuit;
 use models\User;
 use models\Hero;
 use models\HeroSkin;
+
 class OutAppCircuitController extends BaseController {
     private $redis_key_circuit_ranking = 'circuit_ranking';
     private $redis_key_circuit_phase_ranking = 'circuit_phase_ranking';