diff --git a/inventory/groups.yaml b/inventory/groups.yaml
index 4552ce713d..b4e0dc8098 100644
--- a/inventory/groups.yaml
+++ b/inventory/groups.yaml
@@ -24,8 +24,8 @@ groups:
     - etherpad[0-9]*.opendev.org
     - review[0-9]*.openstack.org
     - review-dev[0-9]*.open*.org
-#  backup-server:
-#    - backup[0-9]*.opendev.org
+  backup-server:
+    - backup[0-9]*.opendev.org
   cacti: cacti[0-9]*.open*.org
   control-plane-clouds:
     - bridge.openstack.org