urbackup will not save empty directories

Good afternoon colleagues, I have many agents who work online, work great.

I have set up a backup of the directory: /
I excluded the directories I don’t want to backup: /data/;/mnt/;/dvr/;/cache/;/proc/;/tmp/;/run/;/sys/;/dev/;/var/run/;/var/lock/;/var/tmp/;/var/log/.

The problem is that where I look at backups these folders exist, just empty and without files, but can I make it so that I do not see these empty folders in my backup?