diff --git a/neko/install.txt b/neko/install.txt
index cb418a0..72a69d2 100644
--- a/neko/install.txt
+++ b/neko/install.txt
@@ -128,6 +128,7 @@ nixos-install --option experimental-features 'nix-command flakes' --no-root-pass
 
 umount -Rl /data /mnt
 cryptsetup luksClose crypt-system
+sync
 
 # shutdown once