diff --git a/app/Http/Controllers/SetupController.php b/app/Http/Controllers/SetupController.php
index 6c978e79..5d54ed73 100644
--- a/app/Http/Controllers/SetupController.php
+++ b/app/Http/Controllers/SetupController.php
@@ -198,7 +198,7 @@ class SetupController extends Controller
             return !in_array($input->env['mail_driver'], ['log', 'smtp']);
         });
 
-        $v->sometimes(['env.mail_username'], 'required', function($input) {
+        $v->sometimes(['env.mail_username'], 'required', function ($input) {
             return !in_array($input->env['mail_username'], ['sendmail']);
         });