diff --git a/README.md b/README.md
index aa696ce..6468a51 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Create a simple `config.toml` in `/etc/prometheus-nagios-exporter` with your Nag
 APIKey = ""
 ```
 
-By default this will point to `http://localhost`, but a remote address can be specified with `--nagios.scrape-uri`. The default port is `9111`, but can be changed with `--web.listen-address`.
+By default this will point to `http://localhost`, but a remote address can be specified with `--nagios.scrape-uri`. The default port is `9927`, but can be changed with `--web.listen-address`.
 
 SSL support is included for scraping remote Nagios endpoints, and SSL verification can be enabled/disabled with `--nagios.ssl-verify`. A scrape timeout value is also available with `--nagios.timeout`.
 
diff --git a/nagios_exporter.go b/nagios_exporter.go
index 30a2d8d..56da051 100644
--- a/nagios_exporter.go
+++ b/nagios_exporter.go
@@ -584,7 +584,7 @@ func (e *Exporter) QueryAPIsAndUpdateMetrics(ch chan<- prometheus.Metric, sslVer
 func main() {
 
 	var (
-		listenAddress = flag.String("web.listen-address", ":9111",
+		listenAddress = flag.String("web.listen-address", ":9927",
 			"Address to listen on for telemetry")
 		metricsPath = flag.String("web.telemetry-path", "/metrics",
 			"Path under which to expose metrics")