diff --git a/htdocs/contact/card.php b/htdocs/contact/card.php
index a99df4df5e1..f3e77cdf39c 100644
--- a/htdocs/contact/card.php
+++ b/htdocs/contact/card.php
@@ -414,7 +414,6 @@ if (empty($reshook))
 	$trigger_name='CONTACT_SENTBYMAIL';
 	$paramname='id';
 	$mode='emailfromcontact';
-	$trackid='con'.$object->id;
 	include DOL_DOCUMENT_ROOT.'/core/actions_sendmails.inc.php';
 }