diff --git a/contrib/charts/cert-manager/values.yaml b/contrib/charts/cert-manager/values.yaml
index 300f77cac..6bdd1da10 100644
--- a/contrib/charts/cert-manager/values.yaml
+++ b/contrib/charts/cert-manager/values.yaml
@@ -41,6 +41,10 @@ ingressShim:
 
   # Optional additional arguments for ingress-shim
   extraArgs: []
+    # Use these flags to specify the default Issuer/ClusterIssuer
+    # (IMPORTANT: You need to create this Issuer/ClusterIssuer resource yourself)
+    # - --default-issuer-name=letsencrypt-prod
+    # - --default-issuer-kind=ClusterIssuer
 
   resources: {}
     # requests:
@@ -59,4 +63,4 @@ ingressShim:
 # This is used by the static manifest generator in order to create a static
 # namespace manifest for the namespace that cert-manager is being installed
 # within. It should **not** be used if you are using Helm for deployment.
-createNamespaceResource: false
\ No newline at end of file
+createNamespaceResource: false