diff --git a/includes/defaults.inc.php b/includes/defaults.inc.php
index a010d1e9af..0420a18f36 100644
--- a/includes/defaults.inc.php
+++ b/includes/defaults.inc.php
@@ -1,5 +1,9 @@
 <?php
 
+####
+#### Please don't edit this file -- make changes to the configuration array in config.php
+####
+
 error_reporting(E_ERROR);
 
 ### Default directories