diff --git a/docker/rootfs/start.sh b/docker/rootfs/start.sh
index 0792322..92ed92b 100644
--- a/docker/rootfs/start.sh
+++ b/docker/rootfs/start.sh
@@ -34,7 +34,6 @@ if [ "$ADMIN" != "" ]; then
 fi
 
 echo "[MAILSERVER]" >> /var/www/opentrashmail/config.ini
-echo "PORT=25" >> /var/www/opentrashmail/config.ini
 echo "MAILPORT=25" >> /var/www/opentrashmail/config.ini
 
 echo "[DATETIME]" >> /var/www/opentrashmail/config.ini