diff --git a/docs/book.rst b/docs/book.rst
index 33e756839..679a05223 100644
--- a/docs/book.rst
+++ b/docs/book.rst
@@ -6,7 +6,7 @@ Borg documentation
 .. when you add an element here, do not forget to add it to index.rst
 
 .. toctree::
-    :maxdepth: 3
+    :maxdepth: 2
 
     introduction
     installation