diff --git a/matrix.sh b/matrix.sh
index 871c8bb..0c5dccc 100644
--- a/matrix.sh
+++ b/matrix.sh
@@ -2,7 +2,7 @@
 
 # Authors:
 # (C) 2021 Idea an concept by Christian Zengel <christian@sysops.de>
-# (C) 2021 Script design and prototype by Markus Helmke <helmke@cloudistboese.de>
+# (C) 2021 Script design and prototype by Markus Helmke <m.helmke@nettwarker.de>
 # (C) 2021 Script rework and documentation by Thorsten Spille <thorsten@spille-edv.de>
 
 # configure system language