diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 01a35b59b0a..a5ed2ffc9f6 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -7412,7 +7412,7 @@ class Form
 		$info_bits == 1 ? $is_npr = 1 : $is_npr = 0;
 		$parameters = array(
 			'htmlname' => $htmlname,
-			'selectedrate' => $selectedrate
+			'selectedrate' => $selectedrate,
 			'seller' => $societe_vendeuse,
 			'buyer' => $societe_acheteuse,
 			'idprod' => $idprod,