diff --git a/docs/source/index.rst b/docs/source/index.rst
index 74cd806c..68b75407 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -31,7 +31,7 @@ Features
 
 
 Contents
-========
+--------
 
 .. toctree::
     :titlesonly: