diff --git a/doc/developers/index.rst b/doc/developers/index.rst
index 1d70c1c9bcaa5006aa6a6a2805e253dd4a355589..3b5930633bc831b04591f49e95573418bfe73ec5 100644
--- a/doc/developers/index.rst
+++ b/doc/developers/index.rst
@@ -1,5 +1,5 @@
 .. toctree::
-   :numbered:
+
    index.rst
    performance.rst
    utilities.rst