@@ -843,7 +843,7 @@ func (srv *Server) DockerInfo(job *engine.Job) engine.Status {

 func (srv *Server) DockerVersion(job *engine.Job) engine.Status {

 	v := &engine.Env{}

 	v.Set("Version", dockerversion.VERSION)

-	v.SetJson("ApiVersion", api.APIVERSION)

+	v.Set("ApiVersion", string(api.APIVERSION))

 	v.Set("GitCommit", dockerversion.GITCOMMIT)

 	v.Set("GoVersion", goruntime.Version())

 	v.Set("Os", goruntime.GOOS)