diff --git a/content/en/docs/setup/independent/create-cluster-kubeadm.md b/content/en/docs/setup/independent/create-cluster-kubeadm.md
index ea1ab53a9eeb5..70d3f44e46d0f 100644
--- a/content/en/docs/setup/independent/create-cluster-kubeadm.md
+++ b/content/en/docs/setup/independent/create-cluster-kubeadm.md
@@ -308,6 +308,8 @@ kubectl apply -f https://docs.projectcalico.org/v3.3/getting-started/kubernetes/
 {{% tab name="Cilium" %}}
 For more information about using Cilium with Kubernetes, see [Kubernetes Install guide for Cilium](https://docs.cilium.io/en/stable/kubernetes/).
 
+For Cilium to work correctly, you must pass `--pod-network-cidr=10.217.0.0/16` to `kubeadm init`.
+
 These commands will deploy Cilium with its own etcd managed by etcd operator.
 
 _Note_: If you are running kubeadm in a single node please untaint it so that