diff --git a/htdocs/ticket/class/ticket.class.php b/htdocs/ticket/class/ticket.class.php
index f1f84fb8a9b..45e3cf361b3 100644
--- a/htdocs/ticket/class/ticket.class.php
+++ b/htdocs/ticket/class/ticket.class.php
@@ -3054,8 +3054,8 @@ class Ticket extends CommonObject
 					$non_closed_contacts[] = $db->fetch_row($resql);
 				}
 			}
-			$to = array_filter($to, function($v, $k) use($non_closed_contacts, $langs) {
-				foreach($non_closed_contacts as $non_closed_contact) {
+			$to = array_filter($to, function ($v, $k) use ($non_closed_contacts, $langs) {
+				foreach ($non_closed_contacts as $non_closed_contact) {
 					if ($k == $non_closed_contact[0])
 						return true;
 				}