diff --git a/listener/listener.go b/listener/listener.go
index d13093e3..2d95ed95 100644
--- a/listener/listener.go
+++ b/listener/listener.go
@@ -363,7 +363,7 @@ func ReCreateTun(tunConf *config.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- *
 		return
 	}
 
-	tunLister, err = sing_tun.New(*tunConf, tcpIn, udpIn)
+	tunLister, err = sing_tun.New(tunConf, tcpIn, udpIn)
 }
 
 func ReCreateRedirToTun(ifaceNames []string) {
diff --git a/listener/sing_tun/server.go b/listener/sing_tun/server.go
index 83d38e28..23774683 100644
--- a/listener/sing_tun/server.go
+++ b/listener/sing_tun/server.go
@@ -65,10 +65,11 @@ func CalculateInterfaceName(name string) (tunName string) {
 	return
 }
 
-func New(options config.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) (l *Listener, err error) {
+func New(options *config.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) (l *Listener, err error) {
 	tunName := options.Device
 	if tunName == "" {
 		tunName = CalculateInterfaceName(InterfaceName)
+		options.Device = tunName
 	}
 	tunMTU := options.MTU
 	if tunMTU == 0 {
@@ -121,7 +122,7 @@ func New(options config.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.P
 	}
 	l = &Listener{
 		closed:  false,
-		options: options,
+		options: *options,
 		handler: handler,
 	}
 	defer func() {