diff --git a/pyiron_base/database/filetable.py b/pyiron_base/database/filetable.py
index 715d1073a..2bad3252b 100644
--- a/pyiron_base/database/filetable.py
+++ b/pyiron_base/database/filetable.py
@@ -59,8 +59,7 @@ def __call__(cls, index_from):
         _path = os.path.abspath(os.path.expanduser(index_from))
         if _path not in cls._instances:
             common_path = get_most_common_path(
-                path=_path,
-                reference_paths=cls._instances.keys()
+                path=_path, reference_paths=cls._instances.keys()
             )
             if common_path is not None:
                 cls._instances[_path] = super(FileTableSingleton, cls).__call__(
@@ -661,9 +660,7 @@ def get_job_status_from_file(hdf5_file, job_name):
 
 
 def get_most_common_path(path, reference_paths):
-    path_match_lst = [
-        p for p in reference_paths if os.path.commonpath([path, p]) == p
-    ]
+    path_match_lst = [p for p in reference_paths if os.path.commonpath([path, p]) == p]
     if len(path_match_lst) > 0:
         return max(path_match_lst, key=len)
     else: