diff --git a/slides/kube/setup-k8s.md b/slides/kube/setup-k8s.md
index 03230e3c..82bdbbeb 100644
--- a/slides/kube/setup-k8s.md
+++ b/slides/kube/setup-k8s.md
@@ -20,6 +20,8 @@
 
     6. Copy the configuration file generated by `kubeadm init`
 
+(details in the [prepare VMs README](https://github.com/jpetazzo/container.training/blob/master/prepare-vms/README.md))
+
 ---
 
 ## `kubeadm` drawbacks