diff --git a/README b/README
index 63fed7f..1fd9979 100644
--- a/README
+++ b/README
@@ -11,7 +11,7 @@ mkdir -p /mnt/boot
 mount /dev/disk/by-label/boot /mnt/boot
 nixos-generate-config --root /mnt
 # copy configuration to /mnt/etc/nixos
-nix-env -i git
+nix-env -iA nixos.git
 nixos-install --flake /mnt/etc/nixos#artiq
 reboot
 # run memtest86