diff --git a/app/Protocols/Singbox.php b/app/Protocols/Singbox.php
index 37ca0284..8b69386d 100644
--- a/app/Protocols/Singbox.php
+++ b/app/Protocols/Singbox.php
@@ -130,7 +130,7 @@ class SingBox
         $array['server_port'] = $server['port'];
         $array['uuid'] = $uuid;
         $array['security'] = 'auto';
-        $array['alterId'] = 0;
+        $array['alter_id'] = 0;
         $array['transport']= [];
 
         if ($server['tls']) {