@@ -63,7 +63,13 @@ }
 
 	signal := syscall.SIGINT
 	cmd.out.Info("[sending %s to command]\n", signal)
-	err := cmd.Process.Signal(signal)
+	var target int
+	if cmd.SysProcAttr != nil && cmd.SysProcAttr.Pgid != 0 {
+		target = cmd.SysProcAttr.Pgid
+	} else {
+		target = cmd.Process.Pid
+	}
+	err := syscall.Kill(target, signal)
 	if err != nil {
 		return fmt.Errorf("error killing command: %v", err)
 	}
@@ -132,6 +138,10 @@ }
 
 func (cmd *Cmd) makeCommand() {
 	cmd.Cmd = exec.Command(cmd.name, cmd.args...)
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setpgid: true,
+		Pgid:    0,
+	}
 	cmd.Stdout = cmd.opts.Stdout
 	cmd.Stderr = cmd.opts.Stderr
 }