diff --git a/.gitea/workflows/test-build.yml b/.gitea/workflows/test-build.yml
index f4f4767..86f96c3 100644
--- a/.gitea/workflows/test-build.yml
+++ b/.gitea/workflows/test-build.yml
@@ -9,7 +9,9 @@ jobs:
     runs-on: debian-latest
     steps:
       - name: Install prerequisites
-        run: apt update && apt install -y sudo zstd
+        run: |
+          apt update && apt install -y sudo zstd
+          echo "USER=$(whoami)" >> $GITHUB_ENV
 
       - name: Install Nix
         uses: https://github.com/nixbuild/nix-quick-install-action@v25