diff --git a/api/controllers/OauthController.php b/api/controllers/OauthController.php
index a815116..a74d33e 100644
--- a/api/controllers/OauthController.php
+++ b/api/controllers/OauthController.php
@@ -126,7 +126,6 @@ class OauthController extends Controller {
 
             if (!$account->canAutoApprove($clientModel, $authParams['scopes'])) {
                 $isAccept = Yii::$app->request->post('accept');
-                $isAccept = null;
                 if ($isAccept === null) {
                     throw new AcceptRequiredException();
                 }