diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f9b0749..56cef97 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,7 +27,10 @@ jobs:
           name: daylin
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
       - name: Build
-        run: nix build '.#nixosConfigurations.${{ matrix.host }}.config.system.build.toplevel'
+        run: |
+          nix build \
+            '.#nixosConfigurations.${{ matrix.host }}.config.system.build.toplevel' \
+            --accept-flake-config
       - name: Push
         env:
           CACHIX_ACTIVATE_TOKEN: "${{ secrets.CACHIX_ACTIVATE_TOKEN }}"