diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index 7ede8d4..563a44c 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -67,8 +67,9 @@ jobs:
 
       - name: build
         run: |
-          package=".#nixosConfigurations."${{ matrix.machine }}".config.system.build.toplevel"
-          nix build -L "$package"
+          # package=".#nixosConfigurations."${{ matrix.machine }}".config.system.build.toplevel"
+          # nix build -L "$package"
+          nix run nixpkgs#nixos-rebuild build -- --flake ".#${{ matrix.machine }}"
 
       - name: cache
         # https://stackoverflow.com/a/58859404