diff --git a/lib/tun2/server.go b/lib/tun2/server.go
index 4335f82..0dbe173 100644
--- a/lib/tun2/server.go
+++ b/lib/tun2/server.go
@@ -302,7 +302,7 @@ func (s *Server) RoundTrip(req *http.Request) (*http.Response, error) {
 
 		c.cancel()
 
-		return nil, err
+		return s.RoundTrip(req)
 	}
 	defer stream.Close()
 
@@ -318,7 +318,7 @@ func (s *Server) RoundTrip(req *http.Request) (*http.Response, error) {
 
 		c.cancel()
 
-		return nil, err
+		return s.RoundTrip(req)
 	}
 
 	buf := bufio.NewReader(stream)