Rancher-NFS and volume names

I have been trying to use Rancher-NFS service to create volumes for my services. I am little bit confused about how to create volumes or to configure services about volumes names. When trying to mount the NFS resource it is using the volume-name as a directory to compose the origin mount.

For example:

version: '2'
volumes:
  AEON-Config:
    driver_opts:
      exportBase: /config/
      host: HOST-IP
    driver: rancher-nfs
services:
  AEON-API:
    image: IMAGE
    stdin_open: true
    volumes:
    - AEON-Config:/config/infrastructure.js
    - AEON-Config:/config/secrets.js:ro
    tty: true
    ports:
    - 3000:3000/tcp
    command:
    - start
    labels:
      io.rancher.container.pull_image: always

Because I am using AEON-Config as the volume name, when mounting the NFS resource it tries to do the following:

"Failed to mount AEON-Platform_AEON-Config_87357: Failed nsenter -t   726 -n mount NFS-SERVER:/config//AEON-Platform_AEON-Config_87357 /var/lib/rancher/volumes/rancher-nfs/AEON-Platform_AEON-Config_87357"

of course, NFS-SERVER:/config//AEON-Platform_AEON-Config_87357 does not exists, what exists is NFS-SERVER:/config/

So, if I use the directory to export as volume name it works, but it seems a little bit extrange to use volume names for an exporting directory.