Monitor port does not work over IPv6

[tvidal-net]

I have an SSH Tunnel over IPv6, with a command similar to:

export AUTOSSH_GATETIME=0 AUTOSSH_POLL=120
autossh -M 13000 -NT -o ControlMaster=no -L "13080:[::1]:13080" -6 "example.com"

And it keeps getting the error:

autossh[41343]: 127.0.0.1:13000: Connection refused
autossh[41343]: port down, restarting ssh

Would it be too much work to have autossh detect the -6 command line option and use [::1] instead of 127.0.0.1 to check the monitor port?

Is there any suggestion for a workaround?

Thank you.