How to whitelist WP-DB-Backup in WP Firewall plugin

wp-db-backup plugin seem to be blocked by wordpress firewall plugin from seoegghead (https://www.seoegghead.com/software/wordpress-firewall.seo), the backup process suspected as sql injection attack by the firewall.

anybody know how to whitelist wp-db-backup in wordpress firewall? i try several combination of page and form variable in the whitelist setting but none is working for me.

thanks.
[poer]