diff --git a/doc/explanation/index.rst b/doc/explanation/index.rst
index 8b8e4e5785e..dd16d9abf4b 100644
--- a/doc/explanation/index.rst
+++ b/doc/explanation/index.rst
@@ -7,11 +7,11 @@ the rest of the OCaml ecosystem.
 .. toctree::
    :maxdepth: 1
 
+   mental-model
    scopes
    preprocessing
    ocaml-ecosystem
    package-management
    opam-integration
    bootstrap
-   mental-model
    tour/index