diff --git a/.forgejo/workflows/check.yml b/.forgejo/workflows/check.yml
index 04d6f6e..cb6ecd0 100644
--- a/.forgejo/workflows/check.yml
+++ b/.forgejo/workflows/check.yml
@@ -11,6 +11,8 @@ jobs:
         run: "apt update && apt install -y sudo"
       - name: Install nix
         uses: https://github.com/cachix/install-nix-action@v23
+        env:
+          USER: root
       - name: Prepare cachix
         uses: https://github.com/cachix/cachix-action@v12
         with: