diff --git a/.forgejo/workflows/build-image.yml b/.forgejo/workflows/build-image.yml
index 3de8072..c3147cf 100644
--- a/.forgejo/workflows/build-image.yml
+++ b/.forgejo/workflows/build-image.yml
@@ -57,6 +57,7 @@ jobs:
         run: |
           nix-env -iA cachix -f https://cachix.org/api/v1/install
           cachix use plasmagoat
+          cachix authtoken ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: Build NixOS image
         run: |