@@ -170,6 +170,8 @@ func (s *DockerSwarmSuite) TestServiceLogsFollow(c *testing.T) {

 	args := []string{"service", "logs", "-f", name}

 	cmd := exec.Command(dockerBinary, d.PrependHostArg(args)...)

 	r, w := io.Pipe()

+	defer r.Close()

+	defer w.Close()

 	cmd.Stdout = w

 	cmd.Stderr = w

 	assert.NilError(c, cmd.Start())