diff --git a/make-disk.sh b/make-disk.sh
index 0b7e31ab89dd..739194348894 100755
--- a/make-disk.sh
+++ b/make-disk.sh
@@ -54,7 +54,7 @@ findutils=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).findutils' |
 utillinux=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).utillinux' | $NIX_CMD_PATH/nix-instantiate -))
 e2fsprogs=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).e2fsprogs' | $NIX_CMD_PATH/nix-instantiate -))
 modutils=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).modutils' | $NIX_CMD_PATH/nix-instantiate -))
-grub=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).grub' | $NIX_CMD_PATH/nix-instantiate -))
+grub=$($NIX_CMD_PATH/nix-store -r $(echo '(import ./pkgs.nix).grub' | $NIX_CMD_PATH/nix-instantiate -))
 
 (while read storepath; do
    cp -fa --parents ${storepath} ${archivesDir}