diff --git a/tunnel/default.go b/tunnel/default.go
index a7386ffd..127785d3 100644
--- a/tunnel/default.go
+++ b/tunnel/default.go
@@ -38,7 +38,7 @@ func (t *tun) Address() string {
 }
 
 func (t *tun) Transport() transport.Transport {
-	return t.options.Transport
+	return nil
 }
 
 func (t *tun) Options() transport.Options {