list replicationControllers appears broken

Working through the guestbook example, my replicationControllers get created and can be get-ed, but 'list replicationControllers' returns nothing:

jcarriere@docker:~/kubernetes$ cluster/kubecfg.sh list replicationControllers
Name                Image(s)            Selector            Replicas
----------          ----------          ----------          ----------

jcarriere@docker:~/kubernetes$ cluster/kubecfg.sh get replicationControllers/redisSlaveController
Name                   Image(s)                   Selector            Replicas
----------             ----------                 ----------          ----------
redisSlaveController   brendanburns/redis-slave   name=redisslave     2