@@ -104,7 +104,7 @@ func NewDockerCli(in io.ReadCloser, out, err io.Writer, clientFlags *cli.ClientF

 		}

 		customHeaders["User-Agent"] = "Docker-Client/" + dockerversion.Version + " (" + runtime.GOOS + ")"

-		verStr := string(api.DefaultVersion)

+		verStr := api.DefaultVersion.String()

 		if tmpStr := os.Getenv("DOCKER_API_VERSION"); tmpStr != "" {

 			verStr = tmpStr

 		}

@@ -49,7 +49,7 @@ func (s *DockerSuite) TestApiVersionStatusCode(c *check.C) {

 }

 func (s *DockerSuite) TestApiClientVersionNewerThanServer(c *check.C) {

-	v := strings.Split(string(api.DefaultVersion), ".")

+	v := strings.Split(api.DefaultVersion.String(), ".")

 	vMinInt, err := strconv.Atoi(v[1])

 	c.Assert(err, checker.IsNil)

 	vMinInt++

@@ -63,7 +63,7 @@ func (s *DockerSuite) TestApiClientVersionNewerThanServer(c *check.C) {

 }

 func (s *DockerSuite) TestApiClientVersionOldNotSupported(c *check.C) {

-	v := strings.Split(string(api.MinVersion), ".")

+	v := strings.Split(api.MinVersion.String(), ".")

 	vMinInt, err := strconv.Atoi(v[1])

 	c.Assert(err, checker.IsNil)

 	vMinInt--