diff --git a/.forgejo/workflows/demo.yml b/.forgejo/workflows/demo.yml
index a6fbb55..e9bc649 100644
--- a/.forgejo/workflows/demo.yml
+++ b/.forgejo/workflows/demo.yml
@@ -16,4 +16,4 @@ jobs:
           eval $(ssh-agent -s)
           ssh-add id_ed25519.pub
           ssh -o StrictHostKeyChecking=accept-new tbarnouin@192.168.1.40 echo "All set !"
-          nix --extra-experimental-features nix-command --extra-experimental-features flakes flake check
+          nix --extra-experimental-features nix-command --extra-experimental-features flakes flake check --show-trace