diff --git a/openapi/data_repository_service.swagger.yaml b/openapi/data_repository_service.swagger.yaml
index 4e4feacdf..971125aee 100644
--- a/openapi/data_repository_service.swagger.yaml
+++ b/openapi/data_repository_service.swagger.yaml
@@ -340,7 +340,7 @@ definitions:
         type: string
         description: >-
           An arbitrary string to be passed to the `/access` method to get an `AccessURL`.
-          This string must be unique per object.
+          This string must be unique within the scope of a single object.
           Note that at least one of `access_url` and `access_id` must be provided.
       region:
         type: string