diff --git a/V2rayNG/app/src/main/assets/v2ray_config_with_tun.json b/V2rayNG/app/src/main/assets/v2ray_config_with_tun.json
index 837bff85..2b2de577 100644
--- a/V2rayNG/app/src/main/assets/v2ray_config_with_tun.json
+++ b/V2rayNG/app/src/main/assets/v2ray_config_with_tun.json
@@ -42,6 +42,13 @@
       "name": "xray0",
       "MTU": 1500,
       "userLevel": 8
+    },
+    "sniffing": {
+      "enabled": true,
+      "destOverride": [
+        "http",
+        "tls"
+      ]
     }
   }
 ],
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/dto/V2rayConfig.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/dto/V2rayConfig.kt
index dd14e717..e8cb1c7a 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/dto/V2rayConfig.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/dto/V2rayConfig.kt
@@ -34,7 +34,7 @@ data class V2rayConfig(
         var protocol: String,
         var listen: String? = null,
         var settings: InSettingsBean? = null,
-        val sniffing: SniffingBean? = null,
+        var sniffing: SniffingBean? = null,
         val streamSettings: Any? = null,
         val allocate: Any? = null
     ) {
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
index fec11fca..a2902a64 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
@@ -398,6 +398,7 @@ object V2rayConfigManager {
             if (!SettingsManager.isUsingHevTun()) {
                 val inboundTun = v2rayConfig.inbounds.firstOrNull { e -> e.tag == "tun" }
                 inboundTun?.settings?.mtu = SettingsManager.getVpnMtu()
+                inboundTun?.sniffing = inbound1.sniffing
             }
         } catch (e: Exception) {
             Log.e(AppConfig.TAG, "Failed to configure inbounds", e)