diff --git a/docs/getting-started-guides/ubuntu.md b/docs/getting-started-guides/ubuntu.md
index 56ef9d9515..e5a849d909 100644
--- a/docs/getting-started-guides/ubuntu.md
+++ b/docs/getting-started-guides/ubuntu.md
@@ -29,6 +29,7 @@ Internet to download the necessary files, while worker nodes do not.
 Ubuntu 15 which uses systemd instead of upstart.
 4. Dependencies of this guide: etcd-2.2.1, flannel-0.5.5, k8s-1.2.0, may work with higher versions.
 5. All the remote servers can be ssh logged in without a password by using key authentication.
+6. The remote user on all machines is using /bin/bash as its login shell, and has sudo access.
 
 
 ## Starting a Cluster