diff --git a/THANKS b/THANKS
index 3d8a2e27..db13bdb5 100644
--- a/THANKS
+++ b/THANKS
@@ -66,6 +66,7 @@ has been important. :-) In alphabetical order:
   - Jouk Jansen
   - Jun I Jin
   - Kiyoshi Kanazawa
+  - Joona Kannisto
   - Per Øyvind Karlsen
   - Iouri Kharon
   - Thomas Klausner