diff --git a/AUTHORS.txt b/AUTHORS.txt
index f3c4b60..bbaaae2 100644
--- a/AUTHORS.txt
+++ b/AUTHORS.txt
@@ -40,6 +40,7 @@ Justin M. Keyes (@justinmk)
 nagev (@np1)
 Chris Lasher (@gotgenes) <chris.lasher@gmail.com>
 Doan Thanh Nam (@tndoan)
+Markus Koller (@toupeira)
 
 
 @something are github user names.