diff --git a/.forgejo/workflows/demo.yml b/.forgejo/workflows/demo.yml
index c8282d4..554861f 100644
--- a/.forgejo/workflows/demo.yml
+++ b/.forgejo/workflows/demo.yml
@@ -10,5 +10,7 @@ jobs:
           ls -alh
           nix-shell -p git
           git clone https://"${{ vars.GIT_USER }}":"${{ vars.GIT_PASS }}"@git.le43.eu/tbarnouin/nixos-hypervisor
+          cd nixos-hypervisor
+          nix --experimental-features 'nix-command flakes' .#nginx
           echo "All set !"