diff --git a/README.adoc b/README.adoc
index eab57ea3..44326981 100644
--- a/README.adoc
+++ b/README.adoc
@@ -72,7 +72,7 @@ nix-shell -p disko git
 
 # Run the following commands as root.
 disko --mode disko [--arg disk "/dev/sda"] --flake {canonical_flake_url}#external-hdd
-nixos-install --root /mnt --flake {canonical_flake_url}#graphical-installer-x86_64-linux
+nixos-install --no-root-passwd --root /mnt --flake {canonical_flake_url}#graphical-installer-x86_64-linux
 ----
 ====