@@ -389,6 +389,10 @@ func (srv *Server) CmdRm(stdin io.ReadCloser, stdout io.Writer, args ...string)

 	if err := cmd.Parse(args); err != nil {

 		return nil

 	}

+	if cmd.NArg() < 1 {

+		cmd.Usage()

+		return nil

+	}

 	for _, name := range cmd.Args() {

 		container := srv.runtime.Get(name)

 		if container == nil {