diff --git a/ansible/group_vars/all/kolla b/ansible/group_vars/all/kolla
index a89d0307a..41351a8d8 100644
--- a/ansible/group_vars/all/kolla
+++ b/ansible/group_vars/all/kolla
@@ -247,7 +247,7 @@ kolla_overcloud_inventory_top_level_group_map:
       - monitoring
   storage:
     groups:
-      - "{{ kolla_overcloud_inventory_storage_groups }}"
+      "{{ kolla_overcloud_inventory_storage_groups }}"
 
 # List of names of top level kolla-ansible groups. Any of these groups which
 # have no hosts mapped to them will be provided with an empty group definition.