diff --git a/systems/jeeves/runners/nix_builder.nix b/systems/jeeves/runners/nix_builder.nix
index 49bfa96..0d1785a 100644
--- a/systems/jeeves/runners/nix_builder.nix
+++ b/systems/jeeves/runners/nix_builder.nix
@@ -133,6 +133,8 @@ in
                 gitMinimal
                 gnused
                 my_python
+                nix
+                nixfmt
                 nixos-rebuild
                 nodejs
                 treefmt