diff --git a/CREDITS.txt b/CREDITS.txt
index 61fde21ee..128dde40f 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -1715,3 +1715,5 @@ Daniel Ferreira
 Michael Charlston
 Leopoldo Cicero
 Tom Van Driel
+Karl Vetter
+Johannes Janssen