diff --git a/third_party/python_kaldi_features/docs/source/conf.py b/third_party/python_kaldi_features/docs/source/conf.py
index 727fc3275..27ed0c9a9 100644
--- a/third_party/python_kaldi_features/docs/source/conf.py
+++ b/third_party/python_kaldi_features/docs/source/conf.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-#
+
 # python_speech_features documentation build configuration file, created by
 # sphinx-quickstart on Thu Oct 31 16:49:58 2013.
 #