diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
index a66ddff6..8ebe7d15 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
@@ -1129,8 +1129,7 @@ public class CoreConfigSingboxService
             {
                 singboxConfig.route.rules.Add(new()
                 {
-                    action = "sniff",
-                    sniffer = new() { "dns", _config.Inbound.First().DestOverride }
+                    action = "sniff"
                 });
                 singboxConfig.route.rules.Add(new()
                 {