diff --git a/troveclient/osc/v1/database_instances.py b/troveclient/osc/v1/database_instances.py
index c155e97c..b8ad1239 100644
--- a/troveclient/osc/v1/database_instances.py
+++ b/troveclient/osc/v1/database_instances.py
@@ -524,7 +524,7 @@ class UpgradeDatabaseInstance(command.Command):
         parser.add_argument(
             'datastore_version',
             metavar='<datastore_version>',
-            help=_('ID or name of the instance.'),
+            help=_('ID or name of the datastore version.'),
         )
         return parser