diff --git a/docs/setup/independent/install-kubeadm.md b/docs/setup/independent/install-kubeadm.md
index 9b6331244a..d0c808e31e 100644
--- a/docs/setup/independent/install-kubeadm.md
+++ b/docs/setup/independent/install-kubeadm.md
@@ -50,7 +50,7 @@ releases](https://github.com/kubernetes/kubeadm/blob/master/CHANGELOG.md)
 For each machine:
 
 * SSH into the machine and become root if you are not already (for example,
-  run `sudo su -`).
+  run `sudo -i`).
 
 * If the machine is running Ubuntu or HypriotOS, run: