diff --git a/THANKS b/THANKS
index 390dcf19..79e2eb39 100644
--- a/THANKS
+++ b/THANKS
@@ -62,6 +62,7 @@ has been important. :-) In alphabetical order:
   - Jouk Jansen
   - Jun I Jin
   - Kiyoshi Kanazawa
+  - Joona Kannisto
   - Per Øyvind Karlsen
   - Iouri Kharon
   - Thomas Klausner