diff --git a/glance/files/queens/glance-api.conf.Debian b/glance/files/queens/glance-api.conf.Debian
index d1de46c..b2aa431 100644
--- a/glance/files/queens/glance-api.conf.Debian
+++ b/glance/files/queens/glance-api.conf.Debian
@@ -3585,6 +3585,7 @@
     {%- set messaging_engine = _data.engine %}
 {%- endif %}
 [oslo_messaging_{{ messaging_engine }}]
+{%- if _data.ssl is defined and 'cacert_file' not in _data.get('ssl', {}).keys() %}{% do _data['ssl'].update({'cacert_file': server.cacert_file}) %}{% endif %}
 {%- include "oslo_templates/files/queens/oslo/messaging/_" + messaging_engine + ".conf" %}
 {%- endif %}