diff --git a/api-ref/src/wadls/volume-api/src/v2/wadl/volumes-v2.wadl b/api-ref/src/wadls/volume-api/src/v2/wadl/volumes-v2.wadl
index e4fb05841..9e81c20d2 100644
--- a/api-ref/src/wadls/volume-api/src/v2/wadl/volumes-v2.wadl
+++ b/api-ref/src/wadls/volume-api/src/v2/wadl/volumes-v2.wadl
@@ -889,6 +889,13 @@
                 Lists volume types.
             </para>
         </wadl:doc>
+        <request>
+            <representation mediaType="application/xml">
+                &sort_keyQueryParameter;
+                &sort_dirQueryParameter;
+                &limitMarkerReqParameter;
+            </representation>
+        </request>
         <response status="200">
             <representation mediaType="application/xml">
                 <wadl:doc xmlns="http://docbook.org/ns/docbook"