diff --git a/inc/config.php b/inc/config.php
index ecd51761..fbbfaa74 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -1,7 +1,8 @@
 <?php
 
 /*
- *  DO NOT EDIT!
+ *  WARNING: This is a project-wide configuration file.
+ *  If you would like to make instance-specific changes to your own setup, please use instance-config.php
  *
  *  Do not edit this file. Edit instance-config.php instead!
  *