diff --git a/NixOS-installation-guide.md b/NixOS-installation-guide.md
index 6c44676..8fcb847 100644
--- a/NixOS-installation-guide.md
+++ b/NixOS-installation-guide.md
@@ -8,7 +8,7 @@ I used [this guide](https://nixos.wiki/wiki/Wil_T_Nix_Guides) so it should be st
 fdisk /dev/sdx
 <.../>
 
-mkfs.fat -F 32 -l NIXBOOT /dev/sdx1
+mkfs.fat -F 32 -n NIXBOOT /dev/sdx1
 mkswap -L SWAP /dev/sdx2
 mkfs.ext4 -L NIXROOT /dev/sdx3