diff --git a/htdocs/product/reassortlot.php b/htdocs/product/reassortlot.php
index 3d2b0f6f35e..cedde29d572 100644
--- a/htdocs/product/reassortlot.php
+++ b/htdocs/product/reassortlot.php
@@ -5,6 +5,7 @@
  * Copyright (C) 2013       Cédric Salvador         <csalvador@gpcsolutions.fr>
  * Copyright (C) 2015       Raphaël Doursenaud      <rdoursenaud@gpcsolutions.fr>
  * Copyright (C) 2016       Ferran Marcet			<fmarcet@2byte.es>
+ * Copyright (C) 2019       Juanjo Menent			<jmenent@2byte.es>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -43,8 +44,8 @@ $result=restrictedArea($user,'produit|service');
 
 
 $action=GETPOST('action','alpha');
-$sref=GETPOST("sref");
-$snom=GETPOST("snom");
+$sref=GETPOST("sref", 'alpha');
+$snom=GETPOST("snom", 'alpha');
 $sall=trim((GETPOST('search_all', 'alphanohtml')!='')?GETPOST('search_all', 'alphanohtml'):GETPOST('sall', 'alphanohtml'));
 $type=GETPOST("type","int");
 $search_barcode=GETPOST("search_barcode",'alpha');