diff --git a/.forgejo/workflows/check.yml b/.forgejo/workflows/check.yml
index cb57fb9b..89475a43 100644
--- a/.forgejo/workflows/check.yml
+++ b/.forgejo/workflows/check.yml
@@ -7,6 +7,10 @@ jobs:
     steps:
       - name: Check out repository code
         uses: https://code.forgejo.org/actions/checkout@v4
+      - name: Prepare cachix
+        uses: https://github.com/cachix/cachix-action@v12
+        with:
+          name: pub-solar
       - name: Run flake checks
         run: |
           nix --print-build-logs --verbose --accept-flake-config flake check