diff --git a/aodh/server/single.yml b/aodh/server/single.yml
index df4be81..6eec70e 100644
--- a/aodh/server/single.yml
+++ b/aodh/server/single.yml
@@ -5,4 +5,7 @@
     openstack_event_alarm_topic: alarm.all
   aodh:
     server:
+      region: ${_param:openstack_region}
       event_alarm_topic: ${_param:openstack_event_alarm_topic}
+      identity:
+        region: ${_param:openstack_region}