diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index c37766b24df..a4b18470be4 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -762,7 +762,7 @@ class FormTicket
 			$arraycodenotparent[] = "";
 
 			$stringtoprint = '<span class="supportemailfield bold">'.$langs->trans("GroupOfTicket").'</span> ';
-			$stringtoprint .= '<select id ="'.$htmlname.'" class="maxwidth500 minwidth400" child_id="0">';
+			$stringtoprint .= '<select id ="'.$htmlname.'" class="minwidth500" child_id="0">';
 			$stringtoprint .= '<option value="">&nbsp;</option>';
 
 			$sql = "SELECT ctc.rowid, ctc.code, ctc.label, ctc.fk_parent, ctc.public, ";