diff --git a/core/standard/openapi/paths/queries/area.yaml b/core/standard/openapi/paths/queries/area.yaml
index a599fc47..3076961a 100644
--- a/core/standard/openapi/paths/queries/area.yaml
+++ b/core/standard/openapi/paths/queries/area.yaml
@@ -37,9 +37,9 @@ post:
   description: Return the data values for the data area defined by the query parameters
   operationId: PostDataForArea
   parameters:
-    $ref: ../../parameters/collections/collectionId.yaml  
+    - $ref: ../../parameters/collections/collectionId.yaml  
   requestBody:
-    - $ref: ../../request-bodies/area.yaml  
+    $ref: ../../request-bodies/area.yaml  
   responses:
     200:
       $ref: ../../responses/queries/200.yaml