diff --git a/doc/index.rst b/doc/index.rst
index 927f5099..4fa53e71 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -78,6 +78,7 @@ Documentation
    :hidden:
    :maxdepth: 1
    :caption: Rules Overview
+   :numbered:
 
    preparation
    simplification