Invalid --to parameter

When deploying this bundle https://api.jujucharms.com/charmstore/v5/~juju-qa/ceph-with-dash-3/archive/ceph-with-dash-lxd.yaml, the deployer generates invalid juju command:

2016-11-01 11:27:05 [DEBUG] deployer.env: Connecting to cwr-maas-power8:cwr-maas-power8...
2016-11-01 11:27:06 [DEBUG] deployer.env: Connected.
2016-11-01 11:27:06 [INFO] deployer.import: Creating machines...
2016-11-01 11:27:06 [INFO] deployer.import: Machine 0 will be created
2016-11-01 11:27:06 [INFO] deployer.import: Deploying applications...
2016-11-01 11:27:06 [INFO] deployer.import: Deploying application ceph-collector using cs:~canonical-storage/xenial/ceph-collector-4
2016-11-01 11:27:06 [DEBUG] deployer.import: Refetching status for placement deploys
2016-11-01 11:27:15 [DEBUG] deployer.import: Setting annotations
2016-11-01 11:27:15 [INFO] deployer.import: Deploying application ceph-dash using cs:~canonical-storage/xenial/ceph-dash-11
2016-11-01 11:27:15 [DEBUG] deployer.import: Refetching status for placement deploys
2016-11-01 11:27:20 [ERROR] deployer.env: Error deploying application 'ceph-dash'
2016-11-01 11:27:20 [ERROR] deployer.env: Command (juju deploy -m cwr-maas-power8:cwr-maas-power8 --to=lxd: --series xenial cs:~canonical-storage/xenial/ceph-dash-11 ceph-dash) Output:

 error: invalid --to parameter "lxd:"

2016-11-01 11:27:20 [INFO] deployer.cli: Deployment stopped. run time: 14.98