diff --git a/image.nix b/image.nix
index e85f22b..28092c5 100644
--- a/image.nix
+++ b/image.nix
@@ -20,7 +20,7 @@ pkgs.dockerTools.buildLayeredImage {
       ncurses
       dockerTools.usrBinEnv
       (writeShellScriptBin "reload-dotfiles" ''
-        ${home-manager}/bin/home-manager switch --flake ''${DOTFILES_REPO:-$1}
+        ${home-manager}/bin/home-manager switch --flake ''${DOTFILES_REPO:-$1} --option tarball-ttl 0
       '')
       (writeTextDir "etc/nix/nix.conf" ''
         experimental-features = nix-command flakes