···122122 m = cls._re.match(flake_str)
123123 assert m is not None, f"got no matches for {flake_str}"
124124 attr = m.group("attr")
125125- nixos_attr = f"nixosConfigurations.{attr or hostname_fn() or 'default'}"
125125+ nixos_attr = f'nixosConfigurations."{attr or hostname_fn() or "default"}"'
126126 path_str = m.group("path")
127127 if ":" in path_str:
128128 return cls(path_str, nixos_attr)