diff --git a/tempest/config.py b/tempest/config.py
index 3fd20ab..1d89eb0 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -370,7 +370,8 @@
                 default=True,
                 help='Enables returning of the instance password by the '
                      'relevant server API calls such as create, rebuild '
-                     'or rescue.'),
+                     'or rescue. This configuration value should be same as '
+                     'nova.conf: DEFAULT.enable_instance_password'),
     cfg.BoolOpt('interface_attach',
                 default=True,
                 help='Does the test environment support dynamic network '