diff --git a/v2rayN/ServiceLib/Sample/tun_singbox_dns b/v2rayN/ServiceLib/Sample/tun_singbox_dns
index 7003f91f..bc5b8c8e 100644
--- a/v2rayN/ServiceLib/Sample/tun_singbox_dns
+++ b/v2rayN/ServiceLib/Sample/tun_singbox_dns
@@ -2,7 +2,7 @@
   "servers": [
     {
       "tag": "remote",
-      "address": "8.8.8.8",
+      "address": "tcp://8.8.8.8",
       "strategy": "prefer_ipv4",
       "detour": "proxy"
     },
@@ -33,4 +33,4 @@
     }
   ],
   "final": "remote"
-}
\ No newline at end of file
+}