diff --git a/api/openapi/solidus-api.oas.yml b/api/openapi/solidus-api.oas.yml
index bd20efc9c06..3f206731375 100644
--- a/api/openapi/solidus-api.oas.yml
+++ b/api/openapi/solidus-api.oas.yml
@@ -5696,6 +5696,7 @@ paths:
           name: simple
           schema:
             type: boolean
+            description: Returns a simplified version of the JSON
       security:
         - api-key: []
   '/orders/{order_number}/customer_returns':