diff --git a/zmb-member.sh b/zmb-member.sh
index 4469464..a5db67e 100644
--- a/zmb-member.sh
+++ b/zmb-member.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