diff --git a/librespot/audio/cdn/CdnManager.py b/librespot/audio/cdn/CdnManager.py
index f2b358a..b7144c9 100644
--- a/librespot/audio/cdn/CdnManager.py
+++ b/librespot/audio/cdn/CdnManager.py
@@ -159,7 +159,8 @@ class CdnManager:
             else:
                 self._expiration = -1
 
-    class Streamer(GeneralAudioStream.GeneralAudioStream, GeneralWritableStream.GeneralWritableStream):
+    class Streamer(GeneralAudioStream.GeneralAudioStream,
+                   GeneralWritableStream.GeneralWritableStream):
         _session: Session = None
         _streamId: StreamId = None
         _executorService = concurrent.futures.ThreadPoolExecutor()