Headless 34 Server with LUKS

I have one partition encrypted however, I don’t need it to mount at boot. I can mount it when I need it but I’m prompted for the passphrase during boot. Is there a way to prevent this w/o loosing the data? So far, all I’ve did is some reading and set that partition to noauto in fstab. It took 12.5hrs to transfer all of the data to the new server so I would like to not have to start over from scratch if possible.

https://www.freedesktop.org/software/systemd/man/systemd.mount.html

This can be done with systems-mount