diff --git a/EGroupwareMail.md b/EGroupwareMail.md
index c695908..6e13926 100644
--- a/EGroupwareMail.md
+++ b/EGroupwareMail.md
@@ -69,7 +69,7 @@ services:
     hostname: <fully-qualified-hostname-as-used-in-certificate>
     # Delivery to Dovecot will NOT work, if above name starts with mail e.g. "mail.example.org"!
     # You need to uncomment the following entrypoint line, to fix this:
-    #entrypoint: ["sh", "-c", "sed 's/ mail$//g' /etc/hosts > /tmp/hosts; cat /tmp/hosts > /etc/hosts; exec /usr/sbin/postfix -c /etc/postfix start-fg"]
+    #entrypoint: ["sh", "-c", "sed 's/ mail$$//g' /etc/hosts > /tmp/hosts; cat /tmp/hosts > /etc/hosts; exec /usr/sbin/postfix -c /etc/postfix start-fg"]
     volumes:
       - /etc/letsencrypt:/etc/letsencrypt
       - /etc/letsencrypt/live/egw.example.org/privkey.pem:/etc/postfix/certificate.key