How to disable listen on 80 when launching as wss server

[wnpllrzodiac]

/opt/brook/brook_linux_amd64 wssserver -domainaddress example.com:12345 --password 1234 >/dev/null 2>&1

lsof -i :80
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
brook_lin 12345 root 6u IPv6 412244 0t0 TCP *:http (LISTEN)