diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 29dc8cc..4873e33 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -19,7 +19,7 @@ jobs:
     - uses: ./.github/actions/install-nix
       with:
         cachixAuthToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-    - run: nix fmt
+    - run: nix fmt -L $(find . -type f -name '*.nix')
 
   develop:
     runs-on: ubuntu-latest