diff --git a/docs/internals/data-structures.rst b/docs/internals/data-structures.rst
index 773bd05db..5fac8fd3d 100644
--- a/docs/internals/data-structures.rst
+++ b/docs/internals/data-structures.rst
@@ -968,7 +968,7 @@ The integrity data of the ``files`` cache is stored in the cache ``config``.
 
 The ``[integrity]`` section is used:
 
-.. code-block:: ini
+.. code-block:: none
 
     [cache]
     version = 1