CRON backup.pex --filename-format does not work

Hello!

Does anybody know why the follwing CRON job does not work - the problem is the parameter --filename-format “%Y%m%d-%D-%t”
Without it works.

~iworx/bin/backup.pex --domains all --backup-options db --filename-format “%Y%m%d-%D-%t” --xfer-method ftp --xfer-ini /home/dom/ftp-daily.ini --quiet --email abc@xyz.com

I tried with single, double and no quotes, does not work

Thanks!
Mars