Ubuntu Avahi Daemon .local Domain

Greetings,

our Business LAN ends with .local Domian Name, so we tried to reconfigure the avahi daemon to use a different domian-name

/etc/avahi/avahi-daemon.conf

domain-name=.alocal

But after the change the avahi daemon is unable to start:

Sep 9 11:37:06 nb77736 avahi-daemon[10174]: Failed to create server: Invalid domain name
Sep 9 11:37:06 nb77736 avahi-daemon[10174]: avahi-daemon 0.6.30 exiting.
Sep 9 11:37:06 nb77736 kernel: [ 9931.367329] init: avahi-daemon main process (10174) terminated with status 255
Sep 9 11:37:06 nb77736 kernel: [ 9931.367449] init: avahi-daemon main process ended, respawning