diff --git a/public_html/admin/configuration_validation.php b/public_html/admin/configuration_validation.php
index 1f2c99537..510f116e9 100644
--- a/public_html/admin/configuration_validation.php
+++ b/public_html/admin/configuration_validation.php
@@ -685,12 +685,14 @@
$_CONF_VALIDATE['Core']['filemanager_show_confirmation'] = array('rule' => 'boolean');
$_CONF_VALIDATE['Core']['filemanager_search_box'] = array('rule' => 'boolean');
$_CONF_VALIDATE['Core']['filemanager_file_sorting'] = array(
- 'inList',
- array(
- 'default', 'NAME_ASC', 'NAME_DESC', 'TYPE_ASC', 'TYPE_DESC',
- 'MODIFIED_ASC', 'MODIFIED_DESC'
- ),
- true
+ 'rule' => array(
+ 'inList',
+ array(
+ 'default', 'NAME_ASC', 'NAME_DESC', 'TYPE_ASC', 'TYPE_DESC',
+ 'MODIFIED_ASC', 'MODIFIED_DESC'
+ ),
+ true
+ )
);
$_CONF_VALIDATE['Core']['filemanager_chars_only_latin'] = array('rule' => 'boolean');
$_CONF_VALIDATE['Core']['filemanager_date_format'] = array('rule' => 'notEmpty');