diff --git a/THANKS b/THANKS
index 1d587dbd..5f607a2f 100644
--- a/THANKS
+++ b/THANKS
@@ -24,6 +24,7 @@ has been important. :-) In alphabetical order:
   - Gilles Espinasse
   - Denis Excoffier
   - Mike Frysinger
+  - Bill Glessner
   - Jason Gorski
   - Juan Manuel Guerrero
   - Joachim Henke