diff --git a/interface/web/admin/form/server_config.tform.php b/interface/web/admin/form/server_config.tform.php
index 0431660590601d64d8f10d59772101fd11be8c30..89165ecfe5e7f8ab9b9871a1d6fd07fb5e8f50e1 100644
--- a/interface/web/admin/form/server_config.tform.php
+++ b/interface/web/admin/form/server_config.tform.php
@@ -369,10 +369,10 @@ $form["tabs"]['mail'] = array(
 			'maxlength' => '255'
 		),
 		'mailbox_virtual_uidgid_maps' => array(
-				'datatype' => 'VARCHAR',
-				'formtype' => 'CHECKBOX',
-				'default' => 'n',
-				'value' => array(0 => 'n', 1 => 'y')
+			'datatype' => 'VARCHAR',
+			'formtype' => 'CHECKBOX',
+			'default' => 'n',
+			'value' => array(0 => 'n', 1 => 'y')
 		),
 		'relayhost' => array(
 			'datatype' => 'VARCHAR',