@@ -136,9 +136,19 @@ func scriptString(script []*dockerscript.Command) string {

 func executeScript(client *net.UnixConn, script []*dockerscript.Command) error {

 	Debugf("executeScript(%s)\n", scriptString(script))

 	defer Debugf("executeScript(%s) DONE\n", scriptString(script))

+	var background sync.WaitGroup

+	defer background.Wait()

 	for _, cmd := range script {

-		if err := executeCommand(client, cmd); err != nil {

-			return err

+		if cmd.Background {

+			background.Add(1)

+			go func(client *net.UnixConn, cmd *dockerscript.Command) {

+				executeCommand(client, cmd)

+				background.Done()

+			}(client, cmd)

+		} else {

+			if err := executeCommand(client, cmd); err != nil {

+				return err

+			}

 		}

 	}

 	return nil

@@ -10,6 +10,7 @@ import (

 type Command struct {

 	Args []string

 	Children []*Command

+	Background bool

 }

 type Scanner struct {

@@ -72,7 +73,7 @@ func parseArgs(s *Scanner) ([]string, rune, error) {

 			return args, tok, nil

 		}

 		if !s.commentLine {

-			if text == "{" || text == "}" || text == "\n" || text == "\r" || text == ";" {

+			if text == "{" || text == "}" || text == "\n" || text == "\r" || text == ";" || text == "&" {

 				return args, tok, nil

 			}

 			args = append(args, text)

@@ -106,6 +107,8 @@ func parse(s *Scanner, opener string) (expr []*Command, err error) {

 			cmd.Children = children

 		} else if afterArgs == "}" && opener != "{" {

 			return nil, fmt.Errorf("unexpected end of block '}'")

+		} else if afterArgs == "&" {

+			cmd.Background = true

 		}

 		if len(cmd.Args) > 0 || len(cmd.Children) > 0 {

 			expr = append(expr, cmd)