diff --git a/etc/permission-hardening.d/30_default.conf b/etc/permission-hardening.d/30_default.conf
index 276b1a4..8a09b4c 100644
--- a/etc/permission-hardening.d/30_default.conf
+++ b/etc/permission-hardening.d/30_default.conf
@@ -1,6 +1,10 @@
 ## Copyright (C) 2012 - 2019 ENCRYPTED SUPPORT LP <adrelanos@riseup.net>
 ## See the file COPYING for copying conditions.
 
+## Please use "/etc/permission-hardening.d/50_user.conf" or
+## "/usr/local/etc/permission-hardening.d/50_user.conf" for your custom
+## configuration. When security-misc is updated, this file may be overwritten.
+
 ## File permission hardening.
 ##
 ## Syntax: