diff --git a/doc/ikiwikiusers.mdwn b/doc/ikiwikiusers.mdwn
index b221cdc4d..86a69720e 100644
--- a/doc/ikiwikiusers.mdwn
+++ b/doc/ikiwikiusers.mdwn
@@ -109,6 +109,7 @@ Projects & Organizations
 * [[voice in time|http://voice-in-time.com]] a voice recording studio located in Hamburg, Germany (rather complex build using ikiwiki only, providing CGI access for the customer)
 * [[nb instrument|http://nb-instrument.com]] a workshop for beautifully handcrafted musical instruments, located in Hamburg, Germany (also one of our rather complex builds using ikiwiki only, providing CGI access for the customer)
 * [[coido architects|http://coido.de]] architectural company, located in Hamburg, Germany and Rotterdam, Netherlands (also rather complex build adding masonry and gallery scripts and some pjaxing to the picture, providing CGI access for the customer)
+* [[guppy|http://guppy.branchable.com]] an internationalized modular Python IRC bot
 
 Personal sites and blogs
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