@@ -225,7 +225,7 @@ func (s *DockerSwarmSuite) TestSwarmServiceWithGroup(c *check.C) {

 	d := s.AddDaemon(c, true, true)

 	name := "top"

-	out, err := d.Cmd("service", "create", "--name", name, "--user", "root:root", "--group-add", "wheel", "--group-add", "audio", "--group-add", "staff", "--group-add", "777", "busybox", "sh", "-c", "id > /id && top")

+	out, err := d.Cmd("service", "create", "--name", name, "--user", "root:root", "--group-add", "wheel", "--group-add", "audio", "--group-add", "staff", "--group-add", "777", "busybox", "top")

 	c.Assert(err, checker.IsNil)

 	c.Assert(strings.TrimSpace(out), checker.Not(checker.Equals), "")

@@ -238,7 +238,7 @@ func (s *DockerSwarmSuite) TestSwarmServiceWithGroup(c *check.C) {

 	container := strings.TrimSpace(out)

-	out, err = d.Cmd("exec", container, "cat", "/id")

+	out, err = d.Cmd("exec", container, "id")

 	c.Assert(err, checker.IsNil)

 	c.Assert(strings.TrimSpace(out), checker.Equals, "uid=0(root) gid=0(root) groups=10(wheel),29(audio),50(staff),777")

 }