diff --git a/htdocs/contact/list.php b/htdocs/contact/list.php
index 6e62cef1eb0..1569eccd108 100644
--- a/htdocs/contact/list.php
+++ b/htdocs/contact/list.php
@@ -7,6 +7,7 @@
  * Copyright (C) 2013       Cédric Salvador         <csalvador@gpcsolutions.fr>
  * Copyright (C) 2013       Alexandre Spangaro      <aspangaro.dolibarr@gmail.com>
  * Copyright (C) 2015       Jean-François Ferry     <jfefe@aternatik.fr>
+ * Copyright (C) 2018       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
@@ -300,6 +301,7 @@ if (strlen($search_phone_mobile))   $sql.= natural_search('p.phone_mobile', $sea
 if (strlen($search_fax))            $sql.= natural_search('p.fax', $search_fax);
 if (strlen($search_skype))          $sql.= natural_search('p.skype', $search_skype);
 if (strlen($search_email))          $sql.= natural_search('p.email', $search_email);
+if (strlen($search_zip))   			$sql.= natural_search("p.zip",$search_zip);
 if ($search_status != '' && $search_status >= 0) $sql.= " AND p.statut = ".$db->escape($search_status);
 if ($search_import_key)             $sql.= natural_search("p.import_key",$search_import_key);
 if ($type == "o")        // filtre sur type