diff --git a/THANKS b/THANKS
index cf59ef1a..c5f7522c 100644
--- a/THANKS
+++ b/THANKS
@@ -135,4 +135,5 @@ Pierre Fenoll
 David Kubecka
 Stefan Grundmann
 Carlos Eduardo de Paula
-Derek Brown
\ No newline at end of file
+Derek Brown
+Heinz N. Gies