diff --git a/index.rst b/index.rst
index bf56411..62a99f2 100644
--- a/index.rst
+++ b/index.rst
@@ -11,7 +11,7 @@
    interest
    data
    signature
-   :maxdepth: 2
+   :maxdepth: 3
 
 
 .. Indices and tables