Rotated daily but has keyword weekly

[Michael Heuberger]

I have this logroate config in /etc/logrotate.d which has the 'weekly' keyword but I still get it every day. It's triggered via a daily cron but still, I expect logrotate to be smart here:

/var/log/nginx/error.log
/var/log/nginx/production.videomail.io/error.log {
    sharedscripts
    create 0644 www-data adm
    weekly
    rotate 12
    mail <email address hidden>
    notifempty
    mailfirst
    prerotate
        if [ -d /etc/logrotate.d/httpd-prerotate ]; then \
             run-parts /etc/logrotate.d/httpd-prerotate; \
        fi \
    endscript
    postrotate
        [ -s /run/nginx.pid ] && kill -USR1 `cat /run/nginx.pid`
    endscript
}

Version info:

$ logrotate -v
logrotate 3.8.7 - Copyright (C) 1995-2001 Red Hat, Inc.
This may be freely redistributed under the terms of the GNU Public License

Let me know if it's a bug or if my above config is wrong.

Thanks!