diff --git a/CREDITS.txt b/CREDITS.txt
index a4015163a..d8e04b6b6 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1627,3 +1627,4 @@ Francesco Ziche
 Jean Paul Duroch
 Romane Oughlissi
 Alexander Maciol
+Udo Kastenholz