How to disable completely Jailkit for Cron jobs?

[jvargas]

Objective:

I do not want my cronjobs to be run with Jailkit, and I don't have it installed because I don't want it.

Problem:

But even if I disable the SSH User from running using Jailkit, Cronjobs always try to be run using Jailkit and then fails.

Diagnostics:

I noticed there is a cron file created in:

/etc/cron.d/ispc_chrooted_web1

And inside it, it always forces the shell to use jailkit, by setting the SHELL variable:

SHELL='/usr/sbin/jk_chrootsh'

So, any shell command always fails since Jailkit is not installed.

Question is:

How can I tell IspConfig to disable or avoid using Jailkit for Cronjobs?