diff --git a/ansible/roles/mistral/templates/mistral.conf.j2 b/ansible/roles/mistral/templates/mistral.conf.j2
index 27639dfca0..c2a051b3ae 100644
--- a/ansible/roles/mistral/templates/mistral.conf.j2
+++ b/ansible/roles/mistral/templates/mistral.conf.j2
@@ -20,8 +20,8 @@ connection = mysql+pymysql://{{ mistral_database_user }}:{{ mistral_database_pas
 max_retries = -1
 
 [keystone_authtoken]
-auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}
-auth_url = {{ admin_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_admin_port }}
+auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}/v3
+auth_url = {{ admin_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_admin_port }}/v3
 auth_type = password
 project_domain_id = default
 user_domain_id = default