diff --git a/youtube_dlc/extractor/aenetworks.py b/youtube_dlc/extractor/aenetworks.py
index 26a54d769..3d0cf1208 100644
--- a/youtube_dlc/extractor/aenetworks.py
+++ b/youtube_dlc/extractor/aenetworks.py
@@ -293,4 +293,4 @@ class HistoryTopicIE(AENetworksBaseIE):
         display_id = self._match_id(url)
         return self.url_result(
             'http://www.history.com/videos/' + display_id,
-            AENetworksIE.ie_key())
\ No newline at end of file
+            AENetworksIE.ie_key())