diff --git a/ground/controllers/IndexController.php b/ground/controllers/IndexController.php
index 38ac110..840a507 100644
--- a/ground/controllers/IndexController.php
+++ b/ground/controllers/IndexController.php
@@ -141,7 +141,7 @@ class IndexController extends Controller
 		}
 
 		App::userLogin($user);
-		App::redirect($_SERVER['HTTP_REFERER']);
+		App::redirect(isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:'/');
 	}
 
 	static function actionSitemap()