diff --git a/plugins/ladspa_effect/calf/AUTHORS b/plugins/ladspa_effect/calf/AUTHORS
index c354559b1..8c4bf4833 100644
--- a/plugins/ladspa_effect/calf/AUTHORS
+++ b/plugins/ladspa_effect/calf/AUTHORS
@@ -4,6 +4,8 @@ Thor Harald Johansen <thj@thj.no>
 Thorsten Wilms <t_w_@freenet.de>
 Hans Baier <hansfbaier@googlemail.com>
 Torben Hohn <torbenh@gmx.de>
+Markus Schmidt <schmidt@boomshop.net>
 
 Additional bugfixes/enhancement patches:
 David Täht <d@teklibre.com>
+Dave Robillard <dave@drobilla.net>