diff --git a/install-dev/php/add_new_groups.php b/install-dev/php/add_new_groups.php
index 7486becef..cae35e5be 100644
--- a/install-dev/php/add_new_groups.php
+++ b/install-dev/php/add_new_groups.php
@@ -37,5 +37,10 @@ function add_new_groups($french, $standard)
 		else
 			$sql .= '('.(int)$last_id.', '.(int)$lang['id_lang'].', "'.pSQL($standard).'"),';
 	$sql = substr($sql, 0, strlen($sql) - 1);
-	DB::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'group_lang` (`id_group`, `id_lang`, `name`) VALUES '.$sql);
+	Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'group_lang` (`id_group`, `id_lang`, `name`) VALUES '.$sql);
+	// we add the different id_group in the configuration
+	if (strtolower($standard) == 'unidentified')
+		Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'configuration` (`id_configuration`, `name`, `value`, `date_add`, `date_upd) VALUES (NULL, "PS_UNIDENTIFIED_GROUP", "'.(int)$last_id.'", NOW(), NOW())');
+	else if (strtolower($standard) == 'guest')
+		Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'configuration` (`id_configuration`, `name`, `value`, `date_add`, `date_upd) VALUES (NULL, "PS_GUEST_GROUP", "'.(int)$last_id.'", NOW(), NOW())');
 }
\ No newline at end of file