diff --git a/CREDITS.txt b/CREDITS.txt
index ff3f568f2..84e03e4f3 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1534,3 +1534,4 @@ James Snodgrass
 Alain Labonne
 Darko Perković
 Pierre Malriq
+Donald Manson