diff --git a/CREDITS.txt b/CREDITS.txt
index 0335dc652..b83d274b1 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1215,4 +1215,4 @@ Nurflügel & Modelltechnik
 Gary Wild
 James A Davey
 Marco Giuseppe Colturi
-
+Martin van Estrik