diff --git a/deploy/addons/ingress/ingress-configmap.yaml b/deploy/addons/ingress/ingress-configmap.yaml
index bccb6091c334..da60d2172b84 100644
--- a/deploy/addons/ingress/ingress-configmap.yaml
+++ b/deploy/addons/ingress/ingress-configmap.yaml
@@ -14,6 +14,7 @@
 
 apiVersion: v1
 data:
+  # see https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/configmap.md for all possible options and their description
   map-hash-bucket-size: "128"
   hsts: "false"
 kind: ConfigMap