diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayServiceManager.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayServiceManager.kt
index e3b88539..08cab75c 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayServiceManager.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayServiceManager.kt
@@ -50,7 +50,7 @@ object V2RayServiceManager {
         set(value) {
             field = value
             Seq.setContext(value?.get()?.getService()?.applicationContext)
-            Libv2ray.initV2Env(Utils.userAssetPath(value?.get()?.getService()))
+            Libv2ray.initV2Env(Utils.userAssetPath(value?.get()?.getService()), Utils.getDeviceIdForXUDPBaseKey())
         }
     var currentConfig: ServerConfig? = null
 
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayTestService.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayTestService.kt
index 362b7196..d8414000 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayTestService.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayTestService.kt
@@ -20,7 +20,7 @@ class V2RayTestService : Service() {
     override fun onCreate() {
         super.onCreate()
         Seq.setContext(this)
-        Libv2ray.initV2Env(Utils.userAssetPath(this))
+        Libv2ray.initV2Env(Utils.userAssetPath(this), Utils.getDeviceIdForXUDPBaseKey())
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
index 33aa5933..07ea467b 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
@@ -13,6 +13,7 @@ import android.content.res.Configuration.UI_MODE_NIGHT_NO
 import android.net.Uri
 import android.os.Build
 import android.os.LocaleList
+import android.provider.Settings
 import android.util.Log
 import android.util.Patterns
 import android.webkit.URLUtil
@@ -317,6 +318,11 @@ object Utils {
         return extDir.absolutePath
     }
 
+    fun getDeviceIdForXUDPBaseKey(): String {
+        val androidId = Settings.Secure.ANDROID_ID.toByteArray(charset("UTF-8"))
+        return Base64.encodeToString(androidId.copyOf(32), Base64.NO_PADDING.or(Base64.URL_SAFE))
+    }
+
     fun getUrlContext(url: String, timeout: Int): String {
         var result: String
         var conn: HttpURLConnection? = null