diff --git a/build/auth.md b/build/auth.md
index ff5539bd8..701db130d 100644
--- a/build/auth.md
+++ b/build/auth.md
@@ -43,7 +43,7 @@ into their respective files in `$HOME`.
     ```
 
 1.  Generate the value of `ssh-privatekey` by copying the value of (for example)
-    `cat id_rsa | base64`.
+    `cat ~/.ssh/id_rsa | base64`.
 
 1.  Copy the value of `cat ~/.ssh/known_hosts | base64` to the `known_hosts`
     field.