diff --git a/inequality/theil.py b/inequality/theil.py
index 8d6d8a1..500e64d 100644
--- a/inequality/theil.py
+++ b/inequality/theil.py
@@ -1,5 +1,6 @@
 """Theil Inequality metrics"""
 
+
 __author__ = "Sergio J. Rey <srey@sdsu.edu>"
 
 import numpy