ERROR: This operating system is not supported

i deployed to dev today and got this:

 = applying puppet
   - [clam] STARTING APPLY {user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9}
   - [elephant] STARTING APPLY {user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9}
   - [snail] STARTING APPLY {user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9}
   - [dotterel] STARTING APPLY {user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9}
   - [ferret] STARTING APPLY {user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9}
   - [demodex] ERROR: This operating system is not supported. The file /etc/debian_version must match (?-mix:^(jessie|8\.)).
   - [demodex] FAILED /srv/leap/bin/puppet_command set_hostname apply --verbosity 1 --tags "leap_base,leap_service,leap_slow" --info "user: varac, platform: 0.9 (develop cc120), leap_cli: 1.9"
     - exit status: 1
     - stdout: ERROR: This operating system is not supported. The file /etc/debian_version must match (?-mix:^(jessie|8\.)).
     - stderr: Nothing written

(from redmine: created on 2016-08-16, closed on 2016-08-29, blocks #8413)