diff --git a/v2rayN/ServiceLib/Sample/SampleTunInbound b/v2rayN/ServiceLib/Sample/SampleTunInbound
index e9ac95e7..95cefbc1 100644
--- a/v2rayN/ServiceLib/Sample/SampleTunInbound
+++ b/v2rayN/ServiceLib/Sample/SampleTunInbound
@@ -1,5 +1,5 @@
 {
-  "tag": "tun-in",
+  "tag": "tun",
   "protocol": "tun",
   "settings": {
     "name": "xray_tun",
diff --git a/v2rayN/ServiceLib/Sample/tun_singbox_inbound b/v2rayN/ServiceLib/Sample/tun_singbox_inbound
index db5b0b32..b23346c1 100644
--- a/v2rayN/ServiceLib/Sample/tun_singbox_inbound
+++ b/v2rayN/ServiceLib/Sample/tun_singbox_inbound
@@ -1,6 +1,6 @@
 {
   "type": "tun",
-  "tag": "tun-in",
+  "tag": "tun",
   "interface_name": "singbox_tun",
   "address": [
     "172.18.0.1/30",
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayRoutingService.cs b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayRoutingService.cs
index 5ad9ed9e..c3bcf616 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayRoutingService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayRoutingService.cs
@@ -27,7 +27,7 @@ public partial class CoreConfigV2rayService
                 });
                 _coreConfig.routing.rules.Add(new()
                 {
-                    inboundTag = ["tun-in"],
+                    inboundTag = ["tun"],
                     port = "53",
                     outboundTag = Global.DnsOutboundTag,
                 });