diff --git a/.github/workflows/build_systems.yml b/.github/workflows/build_systems.yml
index 5cf24b4..ab39c82 100644
--- a/.github/workflows/build_systems.yml
+++ b/.github/workflows/build_systems.yml
@@ -21,5 +21,5 @@ jobs:
         run: "nixos-rebuild build --flake ./#${{ matrix.system }}"
       - name: copy to nix-cache
         env:
-          NIX_SSHOPTS: "-vv"
+          NIX_SSHOPTS: "-vvvv"
         run: nix copy --to ssh://jeeves .#nixosConfigurations.${{ matrix.system }}.config.system.build.toplevel