diff --git a/openapi/paths/subscriptions@{id}@change-items.yaml b/openapi/paths/subscriptions@{id}@change-items.yaml
index ffb4e89ba3..763bf9c5aa 100644
--- a/openapi/paths/subscriptions@{id}@change-items.yaml
+++ b/openapi/paths/subscriptions@{id}@change-items.yaml
@@ -8,6 +8,8 @@ post:
   summary: Change subscription order items
   operationId: PostSubscriptionItemsChange
   x-sdk-operation-name: changeItems
+  parameters:
+    - $ref: ../components/parameters/subscriptionExpand.yaml
   description: Changes subscription order items or quantities, and designates if or when pro-rata credits should be given.
   requestBody:
     content: