diff --git a/AUTHORS b/AUTHORS
index 5ff84e37..5efe4996 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -32,5 +32,6 @@ Joshua M. Clulow (http://sysmgr.org)
 evaryont <colin@evaryont.me>
 Michael "adgar" Edgar <adgar@carboni.ca>
 Jens-Andre "vain" Koch <jakoch@web.de>
+Heiko Hund <heiko@ist.eigentlich.net> - cyrusauth module
 
 If you did something useful and want to be listed here too, add yourself and submit the patch.