Update THANKS.
diff --git a/THANKS b/THANKS
index 1c5bccd..00a35dd 100644
--- a/THANKS
+++ b/THANKS
@@ -33,6 +33,7 @@
   - Jason Gorski
   - Juan Manuel Guerrero
   - Joachim Henke
+  - Christian Hesse
   - Peter Ivanov
   - Jouk Jansen
   - Per Øyvind Karlsen