diff --git a/CRM/Utils/PagerAToZ.php b/CRM/Utils/PagerAToZ.php
index 8e0fccf207e0..0709f675133c 100644
--- a/CRM/Utils/PagerAToZ.php
+++ b/CRM/Utils/PagerAToZ.php
@@ -151,7 +151,7 @@ public static function createLinks(&$query, $sortByCharacter, $isDAO) {
       $qfKey = CRM_Utils_Array::value('qfKey', $query->_formValues);
     }
     if (empty($qfKey)) {
-      $qfKey = CRM_Utils_Request::retrieve('qfKey', 'String', $this, FALSE, NULL, $_REQUEST);
+      $qfKey = CRM_Utils_Request::retrieve('qfKey', 'String', NULL, FALSE, NULL, $_REQUEST);
     }
 
     $aToZBar = array();