diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index aa15d09..e276cbf 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -31,6 +31,7 @@ jobs:
         uses: cachix/install-nix-action@v30
         with:
           install_url: https://releases.nixos.org/nix/nix-2.25.4/install
+          extra_nix_config: 'accept-flake-config = true'
       - name: Sync repository
         uses: actions/checkout@v4
         with: