diff --git a/vdirsyncer/storage/filesystem.py b/vdirsyncer/storage/filesystem.py
index 90240eb..9d02de5 100644
--- a/vdirsyncer/storage/filesystem.py
+++ b/vdirsyncer/storage/filesystem.py
@@ -22,9 +22,9 @@ class FilesystemStorage(Storage):
 
     '''
     Saves each item in its own file, given a directory. Can be used with `khal
-    <http://lostpackets.de/khal/>`_. See also `vdir
+    <http://lostpackets.de/khal/>`_. See `vdir
     <https://github.com/untitaker/vdir>`_ for a more formal description of the
-    format.
+    format. Usable as ``filesystem`` in the config file.
 
     :param path: Absolute path to a vdir or collection, depending on the
         collection parameter (see :py:class:`vdirsyncer.storage.base.Storage`).