diff --git a/eng/req/items.rst b/eng/req/items.rst
index 18b3366..0d73574 100644
--- a/eng/req/items.rst
+++ b/eng/req/items.rst
@@ -2,6 +2,13 @@
 
 .. Copyright (C) 2019, 2020 embedded brains GmbH (http://www.embedded-brains.de)
 
+.. This file was automatically generated.  Do not edit it manually.
+.. Please have a look at
+..
+.. https://docs.rtems.org/branches/master/eng/req/howto.html
+..
+.. for information how to maintain and re-generate this file.
+
 .. _ReqEngSpecificationItems:
 
 Specification Items