diff --git a/p/.htaccess b/p/.htaccess
index 70bc34710..69e50e065 100644
--- a/p/.htaccess
+++ b/p/.htaccess
@@ -1,3 +1,7 @@
+# If you need custom .htaccess rules, instead of modifying this file,
+# create one in `./i/.htaccess` (in particular for access control such as HTTP Basic Auth),
+# or in `../.htaccess` for other more general rules.
+
 <IfModule mod_dir.c>
 	DirectoryIndex	index.php index.html
 </IfModule>