diff --git a/docs/config.rst b/docs/config.rst
index 4b46f97..d8022d9 100644
--- a/docs/config.rst
+++ b/docs/config.rst
@@ -422,7 +422,7 @@ Local
     :param fileext: The file extension to use (e.g. ``.txt``). Contained in the
         href, so if you change the file extension after a sync, this will
         trigger a re-download of everything (but *should* not cause data-loss
-        of any kind). To be compatible with the ``vset to the empty string`` format you have
+        of any kind). To be compatible with the ``vset`` format you have
         to either use ``.vcf`` or ``.ics``. Note that metasync won't work
         if you use an empty string here.
     :param encoding: File encoding for items, both content and filename.
diff --git a/vdirsyncer/storage/filesystem.py b/vdirsyncer/storage/filesystem.py
index 1fd1ac6..98159ec 100644
--- a/vdirsyncer/storage/filesystem.py
+++ b/vdirsyncer/storage/filesystem.py
@@ -22,8 +22,15 @@ class FilesystemStorage(Storage):
     storage_name = "filesystem"
     _repr_attributes = ("path",)
 
-    def __init__(self, path, fileext,
-                 encoding="utf-8", post_hook=None, fileignoreext=".tmp", **kwargs):
+    def __init__(
+        self,
+        path,
+        fileext,
+        encoding="utf-8",
+        post_hook=None,
+        fileignoreext=".tmp",
+        **kwargs
+    ):
         super().__init__(**kwargs)
         path = expand_path(path)
         checkdir(path, create=False)
@@ -82,8 +89,11 @@ class FilesystemStorage(Storage):
     def list(self):
         for fname in os.listdir(self.path):
             fpath = os.path.join(self.path, fname)
-            if os.path.isfile(fpath) and fname.endswith(self.fileext) and (
-                    not fname.endswith(self.fileignoreext)):
+            if (
+                os.path.isfile(fpath)
+                and fname.endswith(self.fileext)
+                and (not fname.endswith(self.fileignoreext))
+            ):
                 yield fname, get_etag_from_file(fpath)
 
     def get(self, href):