--domain ignored in vhost mode

[theguly]

running rustbuster 3.0.3 with:
./rustbuster-v3.0.3-x86_64-unknown-linux-gnu vhost --domain foo.bar --wordlist wl -u http://127.0.0.1/ -S 400 -x 'default'

i have an error message like this:
error: The following required arguments were not provided:
--domain

same behaviour with --domain=foo.bar of course

same CLI arguments but with -d, like:
./rustbuster-v3.0.3-x86_64-unknown-linux-gnu vhost -d foo.bar --wordlist wl -u http://127.0.0.1/ -S 400 -x 'default'

runs wl wordlist against given host/ip