diff --git a/doc/source/devref/effective_neutron.rst b/doc/source/devref/effective_neutron.rst
index 2ea2c925547..382516c4dc4 100644
--- a/doc/source/devref/effective_neutron.rst
+++ b/doc/source/devref/effective_neutron.rst
@@ -75,7 +75,7 @@ Document common pitfalls as well as good practices done during plugin developmen
   there is an agent on the other side of the message broker that interacts
   with the server. Plugins may not rely on `agents <https://review.openstack.org/#/c/174020/>`_ at all.
 * Be mindful of required capabilities when you develop plugin extensions. The
-  `Extension description <https://github.com/openstack/neutron/blob/master/neutron/api/extensions.py#L122>`_ provides the ability to specify the list of required capabilities
+  `Extension description <https://github.com/openstack/neutron/blob/b14c06b5/neutron/api/extensions.py#L122>`_ provides the ability to specify the list of required capabilities
   for the extension you are developing. By declaring this list, the server will
   not start up if the requirements are not met, thus avoiding leading the system
   to experience undetermined behavior at runtime.