diff --git a/ansible/group_vars/all.yml b/ansible/group_vars/all.yml
index ee84feea2b..06bc9eeaf4 100644
--- a/ansible/group_vars/all.yml
+++ b/ansible/group_vars/all.yml
@@ -154,7 +154,7 @@ elasticsearch_datadir_volume: "elasticsearch"
 ###################
 # Messaging options
 ###################
-# olso.messaging rpc transport valid options are [ rabbit, amqp ]
+# oslo.messaging rpc transport valid options are [ rabbit, amqp ]
 om_rpc_transport: "rabbit"
 om_rpc_user: "{{ rabbitmq_user }}"
 om_rpc_password: "{{ rabbitmq_password }}"