diff --git a/templates/smartctl-exporter.service.j2 b/templates/smartctl-exporter.service.j2
index b273cafe..ef9fb374 100644
--- a/templates/smartctl-exporter.service.j2
+++ b/templates/smartctl-exporter.service.j2
@@ -5,7 +5,7 @@ After=network-online.target
 [Service]
 Type=simple
 PIDFile=/run/smartctl_exporter.pid
-ExecStart=/opt/SmartCtlExporter/smartctl_exporter -port {{ PORT }}
+ExecStart=/opt/SmartCtlExporter/smartctl_exporter --web.listen-address=:{{ PORT }}
 User=root
 Group=root
 SyslogIdentifier=smartctl_exporter