diff --git a/tunnel/tunnel.go b/tunnel/tunnel.go
index b83da180..aec6da01 100644
--- a/tunnel/tunnel.go
+++ b/tunnel/tunnel.go
@@ -269,7 +269,7 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
 
 		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultUDPTimeout)
 		defer cancel()
-		rawPc, err := proxy.ListenPacketContext(ctx, metadata)
+		rawPc, err := proxy.ListenPacketContext(ctx, metadata.Pure())
 		if err != nil {
 			if rule == nil {
 				log.Warnln("[UDP] dial %s to %s error: %s", proxy.Name(), metadata.RemoteAddress(), err.Error())