diff --git a/ansible/group_vars/all.yml b/ansible/group_vars/all.yml
index edc17eabfe..907265d8ac 100644
--- a/ansible/group_vars/all.yml
+++ b/ansible/group_vars/all.yml
@@ -223,7 +223,7 @@ migration_interface_address: "{{ 'migration' | kolla_address }}"
 tunnel_interface_address: "{{ 'tunnel' | kolla_address }}"
 octavia_network_interface_address: "{{ 'octavia_network' | kolla_address }}"
 
-# Valid options are [ openvswitch, linuxbridge, vmware_nsxv, vmware_nsxv3, vmware_dvs ]
+# Valid options are [ openvswitch, ovn, linuxbridge, vmware_nsxv, vmware_nsxv3, vmware_dvs ]
 neutron_plugin_agent: "openvswitch"
 
 # Valid options are [ internal, infoblox ]