diff --git a/mopidy/local/commands.py b/mopidy/local/commands.py
index 80ce5c1d..79c1c505 100644
--- a/mopidy/local/commands.py
+++ b/mopidy/local/commands.py
@@ -62,9 +62,10 @@ class ScanCommand(commands.Command):
         self.add_argument('--limit',
                           action='store', type=int, dest='limit', default=None,
                           help='Maximum number of tracks to scan')
-        self.add_argument('--force', 
-                          action='store_true', dest='force', default=False, 
+        self.add_argument('--force',
+                          action='store_true', dest='force', default=False,
                           help='Force rescan of all media files')
+
     def run(self, args, config):
         media_dir = config['local']['media_dir']
         scan_timeout = config['local']['scan_timeout']
@@ -98,7 +99,7 @@ class ScanCommand(commands.Command):
             mtime = file_mtimes.get(abspath)
             if mtime is None:
                 logger.debug('Missing file %s', track.uri)
-                uris_to_remove.add(track.uri) 
+                uris_to_remove.add(track.uri)
             elif mtime > track.last_modified or args.force:
                 uris_to_update.add(track.uri)
             uris_in_library.add(track.uri)