diff --git a/roles/kube_prometheus_stack/README.md b/roles/kube_prometheus_stack/README.md
index 82b1d7c..7f9901f 100644
--- a/roles/kube_prometheus_stack/README.md
+++ b/roles/kube_prometheus_stack/README.md
@@ -13,7 +13,7 @@
 #### Grafana
 
 ```bash
-kubectl -n monitoring port-forward svc/kube-prometheus-stack-grafana 3000
+kubectl -n monitoring port-forward svc/kube-prometheus-stack-grafana 3000:80
 ```
 
 Once you run the command above, you'll be able to open `http://localhost:3000`