diff --git a/_worker.js b/_worker.js
index cec711d98..dbf4a373c 100644
--- a/_worker.js
+++ b/_worker.js
@@ -199,7 +199,7 @@ export default {
                         });
 
                     default:
-                        // return new Response('Not found', { status: 404 });
+                        return new Response('Not found', { status: 404 });
                         url.hostname = 'www.speedtest.net';
                         url.protocol = 'https:';
                         request = new Request(url, request);
@@ -3304,4 +3304,4 @@ const singboxWgOutboundTemp = {
     domain_strategy: "prefer_ipv6",
     detour: "",
     tag: ""
-};
\ No newline at end of file
+};