diff --git a/backend/controllers/AuthController.php b/backend/controllers/AuthController.php
index aedbbf5..ad69dab 100644
--- a/backend/controllers/AuthController.php
+++ b/backend/controllers/AuthController.php
@@ -13,12 +13,12 @@ use DomainException;
 
 class AuthController extends Controller
 {
-    private $_auth_service;
+    private $auth_service;
 
     public function __construct($id, $module, AuthService $service, $config = [])
     {
         parent::__construct($id, $module, $config);
-        $this->_auth_service = $service;
+        $this->auth_service = $service;
     }
 
     /**
@@ -69,7 +69,7 @@ class AuthController extends Controller
         $form = new LoginForm();
         if ($form->load(Yii::$app->request->post()) && $form->validate()) {
             try {
-                $user = $this->_auth_service->auth($form);
+                $user = $this->auth_service->auth($form);
                 Yii::$app->user->login(new Identity($user), $form->rememberMe ? 3600 * 24 * 30 : 0);
 
                 return $this->goBack();