diff --git a/atlas_densities/densities/mtype_densities_from_map/create.py b/atlas_densities/densities/mtype_densities_from_map/create.py
index 9995c0b..ff5eb02 100644
--- a/atlas_densities/densities/mtype_densities_from_map/create.py
+++ b/atlas_densities/densities/mtype_densities_from_map/create.py
@@ -141,6 +141,7 @@ def _create_densities_for_metype(metype: str) -> Optional[Tuple[str, str]]:
     returns = Parallel(n_jobs=n_jobs, return_as="generator")(
         delayed(_create_densities_for_metype)(metype) for metype in probability_map.columns
     )
+
     # construct metadata
     output_legend: Dict[str, Dict[str, str]] = defaultdict(dict)
     for return_value in tqdm(returns, total=len(probability_map.columns)):