diff --git a/doc/source/contents.txt b/doc/source/contents.txt
index de1631c4..250546b0 100644
--- a/doc/source/contents.txt
+++ b/doc/source/contents.txt
@@ -1,3 +1,6 @@
+Table of Contents
+=================
+
 .. toctree::
 
    /api/api