diff --git a/README.md b/README.md
index 402fc97f..f7a745ad 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ This repo is managed with Nix + GNU stow
 - Generate image & boot
   We do this because the default one doesn't have all the utilities we want (e.g. disko).
   - generate image `nom-build --attr nixosConfigurations.installer.config.system.build.isoImage`
+  - wipe the disk's fs with `wipefs`
   - `dd` the image to a flash drive (remember to `sync`)
   - boot off that flash drive