diff --git a/internal/tun2/connection.go b/internal/tun2/connection.go
index 20f05dc..9db2195 100644
--- a/internal/tun2/connection.go
+++ b/internal/tun2/connection.go
@@ -2,8 +2,8 @@ package tun2
 
 import (
 	"bufio"
+	"bytes"
 	"context"
-	"io"
 	"io/ioutil"
 	"net"
 	"net/http"
@@ -127,6 +127,7 @@ func (c *Connection) RoundTrip(req *http.Request) (*http.Response, error) {
 	if err != nil {
 		return nil, errors.Wrap(err, ErrCantOpenSessionStream.Error())
 	}
+	defer stream.Close()
 
 	err = req.Write(stream)
 	if err != nil {
@@ -146,17 +147,8 @@ func (c *Connection) RoundTrip(req *http.Request) (*http.Response, error) {
 		return nil, errors.Wrap(err, "can't read response body")
 	}
 
-	resp.Body = &mixedReadCloser{
-		Reader: buf,
-		Closer: stream,
-	}
-
+	resp.Body = ioutil.NopCloser(bytes.NewBuffer(body))
 	resp.ContentLength = int64(len(body))
 
 	return resp, nil
 }
-
-type mixedReadCloser struct {
-	io.Reader
-	io.Closer
-}