diff --git a/CREDITS.txt b/CREDITS.txt
index 385b03bf6..62e673034 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1632,3 +1632,4 @@ Jacek Wielogórski
 Siegfried Preißler
 Bernard Mohamedaly
 John North
+Thomas Wormsley