diff --git a/ironic_tempest_plugin/config.py b/ironic_tempest_plugin/config.py
index a3b5019..819051e 100644
--- a/ironic_tempest_plugin/config.py
+++ b/ironic_tempest_plugin/config.py
@@ -198,4 +198,7 @@
     cfg.StrOpt('auto_discovery_target_driver',
                help="The driver to set on the newly discovered nodes. "
                     "Only has effect with auto_discovery_feature is True."),
+    cfg.StrOpt('data_store',
+               default='swift',
+               help="The storage backend for storing introspection data."),
 ]