Knife backup export databags fails

Hi!

vagrant@Debian-jessie-amd64-netboot:~$ knife backup export databags -D /tmp/databags/ -V INFO: Using configuration from /home/vagrant/.chef/knife.rb ERROR: Component types databags are not valid.

If you do it wrong?

found after looking into source code:

knife backup export data_bags  -D /tmp/databags/ -V

Documentation says nothing about this …