diff --git a/includes/config.inc.php-dist b/includes/config.inc.php-dist
index 8991b81..14321a6 100644
--- a/includes/config.inc.php-dist
+++ b/includes/config.inc.php-dist
@@ -24,6 +24,7 @@ $logsdirectory = "../etc";
 #$adminapiips = array();
 #$adminapikey = 'thisshouldbequitealongstring,youknow';
 
+# Location of user-database. Make sure its writeable and not served by the webserver!
 $authdb  = "../etc/pdns.users.sqlite3";
 
 # Set a random generated secret to enable auto-login and long living csrf tokens