diff --git a/CREDITS.txt b/CREDITS.txt
index 279e2d8ed..68c996281 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1538,3 +1538,4 @@ Johannes Ferschl
 Piotr Wysocki
 Thomas Halenbeck (monthly)
 Sjoerd Dost
+Ralph Gustafson