diff --git a/src/Http/Controllers/UserController.php b/src/Http/Controllers/UserController.php
index 121683b89..55e7e2842 100644
--- a/src/Http/Controllers/UserController.php
+++ b/src/Http/Controllers/UserController.php
@@ -58,7 +58,7 @@ public function logout($guard = null)
     {
         Auth::guard($guard ?: config('auth.defaults.guard'))->logout();
 
-        Session::forget('password_hash_'.$guard ?: config('auth.defaults.guard'));
+        Session::forget('password_hash_' . ($guard ?: config('auth.defaults.guard')));
     }
 
     /**