diff --git a/inc/api.php b/inc/api.php
index c9608f06..351943a3 100644
--- a/inc/api.php
+++ b/inc/api.php
@@ -33,6 +33,7 @@ class Api {
 			'sticky' => 'sticky',
 			'locked' => 'locked',
 			'bump' => 'last_modified',
+			'slug' => 'semantic_url',
 		);
 
 		$this->threadsPageFields = array(