diff --git a/puppet/services/aodh-base.yaml b/puppet/services/aodh-base.yaml
index 48a2aecd75..5b78e28b7e 100644
--- a/puppet/services/aodh-base.yaml
+++ b/puppet/services/aodh-base.yaml
@@ -83,7 +83,7 @@ outputs:
         aodh::keystone::authtoken::auth_uri: {get_param: [EndpointMap, KeystoneInternal, uri_no_suffix] }
         aodh::keystone::authtoken::auth_url: { get_param: [EndpointMap, KeystoneInternal, uri_no_suffix] }
         aodh::auth::auth_password: {get_param: AodhPassword}
-        aodh::auth::auth_region: 'regionOne'
+        aodh::auth::auth_region: {get_param: KeystoneRegion}
         aodh::auth::auth_tenant_name: 'service'
       service_config_settings:
         keystone: