diff --git a/manifests/site.pp b/manifests/site.pp
index e4a0ffbc6d..9957885e10 100644
--- a/manifests/site.pp
+++ b/manifests/site.pp
@@ -317,6 +317,7 @@ node 'logstash.openstack.org' {
       'elasticsearch06.openstack.org:9200',
       'elasticsearch07.openstack.org:9200',
     ],
+    subunit2sql_db_uri  => hiera('subunit2sql_db_uri', ''),
   }
 }