diff --git a/README.rst b/README.rst
index 549b68d..aae1c04 100644
--- a/README.rst
+++ b/README.rst
@@ -52,6 +52,9 @@
           user: nova
           password: pwd
           tenant: service
+          interface: internal
+          valid_interfaces:
+          - internal
         message_queue:
           engine: rabbitmq
           host: 127.0.0.1