diff --git a/resources/service.php b/resources/service.php
index 80687d7..5c926e1 100644
--- a/resources/service.php
+++ b/resources/service.php
@@ -466,6 +466,16 @@
                     'type' => 'string',
                     'location' => 'query',
                     'required' => false
+                ],
+				'sort' => [
+                    'type' => 'string',
+                    'location' => 'query',
+                    'required' => false
+                ],
+                'sort_order' => [
+                    'type' => 'string',
+                    'location' => 'query',
+                    'required' => false
                 ]
             ]
         ]