diff --git a/doc/source/2010.rst b/doc/source/2010.rst
index 6ecd1f37..5a64aeb4 100644
--- a/doc/source/2010.rst
+++ b/doc/source/2010.rst
@@ -147,7 +147,7 @@ details the use of the feature. For example test bundles, see the
 ``src/tests/bundles`` directory within the relevant charm repository.
 
 Gnocchi and external root CA for S3
------------------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The gnocchi charm now supports an additional configuration option:
 trusted-external-ca-cert. This option installs and configures an external root