diff --git a/docs/source/index.rst b/docs/source/index.rst
index d4b8bd3..9f628be 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -7,7 +7,7 @@ Welcome to wavinfo's documentation!
 ===================================
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Notes
    
    quickstart