diff --git a/zmb-ad.sh b/zmb-ad.sh
index d6b25b7..805dfd2 100644
--- a/zmb-ad.sh
+++ b/zmb-ad.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
@@ -115,4 +115,4 @@ systemctl unmask samba-ad-dc
 systemctl enable samba-ad-dc $BINDNINE
 systemctl restart samba-ad-dc $BINDNINE
 
-exit 0
\ No newline at end of file
+exit 0