diff --git a/heat_tempest_plugin/config.py b/heat_tempest_plugin/config.py
index d658a98..ced87e3 100644
--- a/heat_tempest_plugin/config.py
+++ b/heat_tempest_plugin/config.py
@@ -153,7 +153,9 @@
     cfg.StrOpt('heat_config_notify_script',
                default=('heat-config-notify'),
                help="Path to the script heat-config-notify"),
-
+    cfg.StrOpt('hidden_stack_tag',
+               default='data-processing-cluster',
+               help="Tag to be considered as hidden for stack tags tests"),
 ]