diff --git a/config/config.sample.php b/config/config.sample.php
index 54dbf3f7c3350a92db7ddbb42a721f934edc1be6..105d4759cc1dd53cee0a4c47de3621af70d407c9 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -184,7 +184,11 @@ $CONFIG = array(
  */
 // "datadirectory" => "",
 
-/* Enable maintenance mode to disable ownCloud */
+/* Enable maintenance mode to disable ownCloud
+   If you want to prevent users to login to ownCloud before you start doing some maintenance work, 
+   you need to set the value of the maintenance parameter to true. 
+   Please keep in mind that users who are already logged-in are kicked out of ownCloud instantly.
+*/
 "maintenance" => false,
 
 "apps_paths" => array(