diff --git a/README.md b/README.md
index 8f7a773..087dfc3 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,12 @@ Login without polluting the _known hosts_ file:
 ssh virtualuser@ipAddress -o "StrictHostKeyChecking=no" -o "UserKnownHostsFile=/dev/null"
 ```
 
+Add an unique _hostname_ to each VM:
+
+```sh
+hostnamectl set-hostname unique-hname-101
+```
+
 And then launch this to install Rancher:
 
 ```sh