diff --git a/inventory/inventory b/inventory/inventory
index 7993b86777..50da37208a 100644
--- a/inventory/inventory
+++ b/inventory/inventory
@@ -179,18 +179,26 @@ mailman02.phx2.fedoraproject.org
 mailman01.stg.phx2.fedoraproject.org
 
 [mbs-frontend]
-#mbs-frontend01.phx2.fedoraproject.org
-#mbs-frontend02.phx2.fedoraproject.org
+mbs-frontend01.phx2.fedoraproject.org
+mbs-frontend02.phx2.fedoraproject.org
 
 [mbs-frontend-stg]
-#mbs-frontend01.stg.phx2.fedoraproject.org
-#mbs-frontend02.stg.phx2.fedoraproject.org
+mbs-frontend01.stg.phx2.fedoraproject.org
+mbs-frontend02.stg.phx2.fedoraproject.org
 
 [mbs-backend]
-#mbs-backend01.phx2.fedoraproject.org
+mbs-backend01.phx2.fedoraproject.org
 
 [mbs-backend-stg]
-#mbs-backend01.stg.phx2.fedoraproject.org
+mbs-backend01.stg.phx2.fedoraproject.org
+
+[mbs:children]
+mbs-frontend
+mbs-backend
+
+[mbs-stg:children]
+mbs-frontend-stg
+mbs-backend-stg
 
 [mdapi]
 mdapi01.phx2.fedoraproject.org