diff --git a/docs/source/index.rst b/docs/source/index.rst
index e3e01ef..1788cd2 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -20,7 +20,7 @@ nfstream documentation
 
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 3
    :caption: Contents:
 
    installation