diff --git a/CREDITS.txt b/CREDITS.txt
index 7c965b4a8..ea0603324 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -2263,3 +2263,5 @@ Donald Taylor
 Paul Makepeace
 Thomas Fowler
 Walter Szempruch
+Charles Starck
+Fabian Mächler