diff --git a/nova/files/queens/nova-compute.conf.Debian b/nova/files/queens/nova-compute.conf.Debian
index b56bd12..f286025 100644
--- a/nova/files/queens/nova-compute.conf.Debian
+++ b/nova/files/queens/nova-compute.conf.Debian
@@ -4459,6 +4459,7 @@
 
 {%- set _data = compute.get('cinder', compute.get('identity', {})) %}
 {%- set auth_type = _data.get('auth_type', 'password') %}
+{%- if 'cacert_file' not in _data.keys() %}{% do _data.update({'cacert_file': compute.cacert_file}) %}{% endif %}
 {%- include "oslo_templates/files/queens/keystoneauth/_type_" + auth_type + ".conf" %}