cupsd not starting at boot in TrueOS

I have installed a TrueOS 13.0-CURRENT desktop system with cups 2.2.8 installed from pkg. Printing works like a charm, but cupsd is not starting at boot, despite this being in /etc/rc.conf:

cupsd_enable="YES"
devfs_system_ruleset="system"

sudo service cupsd start has to be run after boot to start it. It works fine, but it should start at boot. During the boot output where it shows the services being started, there's no visible error; it just doesn't mention any attempt to start cupsd.