diff --git a/adapter/provider/vehicle.go b/adapter/provider/vehicle.go
index 31e5d6c0..eba8423c 100644
--- a/adapter/provider/vehicle.go
+++ b/adapter/provider/vehicle.go
@@ -58,7 +58,7 @@ func (h *HTTPVehicle) Read() ([]byte, error) {
 	}
 
 	req, err := http.NewRequest(http.MethodGet, uri.String(), nil)
-	req.Header.Set("user-agent", netHttp.UA)
+	req.Header.Set("User-Agent", netHttp.UA)
 
 	if err != nil {
 		return nil, err
diff --git a/listener/tun/ipstack/gvisor/handler.go b/listener/tun/ipstack/gvisor/handler.go
index 6365234e..78f456db 100644
--- a/listener/tun/ipstack/gvisor/handler.go
+++ b/listener/tun/ipstack/gvisor/handler.go
@@ -27,7 +27,7 @@ type GVHandler struct {
 func (gh *GVHandler) HandleTCP(tunConn adapter.TCPConn) {
 	id := tunConn.ID()
 
-	rAddr := &net.UDPAddr{
+	rAddr := &net.TCPAddr{
 		IP:   net.IP(id.LocalAddress),
 		Port: int(id.LocalPort),
 		Zone: "",