diff --git a/beets/mediafile.py b/beets/mediafile.py
index 59959b8f5..c910c9a86 100644
--- a/beets/mediafile.py
+++ b/beets/mediafile.py
@@ -40,6 +40,7 @@ import mutagen.id3
 import mutagen.mp4
 import mutagen.flac
 import mutagen.asf
+
 import codecs
 import datetime
 import re
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 8bce7c62a..a6de16f9c 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -4,6 +4,11 @@ Changelog
 1.4.4 (in development)
 ----------------------
 
+New features:
+
+* Added support for DSF files, once a future version of Mutagen is released
+  that supports them. Thanks to :user:`docbobo`. :bug:`459` :bug:`2379`
+
 Fixes:
 
 * :doc:`/plugins/mpdupdate`: Fix Python 3 compatibility. :bug:`2381`