diff --git a/CRM/Core/BAO/UFMatch.php b/CRM/Core/BAO/UFMatch.php
index 0d8ece931b64..831a70ee70cb 100644
--- a/CRM/Core/BAO/UFMatch.php
+++ b/CRM/Core/BAO/UFMatch.php
@@ -266,7 +266,7 @@ public static function &synchronizeUFMatch(&$user, $userKey, $uniqId, $uf, $stat
         // extract first / middle / last name
         // for joomla
         if ($uf === 'Joomla' && $user->name) {
-          CRM_Utils_String::extractName($user->name, $dedupeParameters);
+          CRM_Utils_String::extractName($user->name, $contactParameters);
         }
 
         if ($uf === 'WordPress') {