diff --git a/tox.ini b/tox.ini
index 95f2cf1..96a97f4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -132,3 +132,6 @@
 ignore = E125,E123,E129
 show-source = True
 exclude = .git,.venv,.tox,dist,doc,openstack,*egg
+
+[testenv:releasenotes]
+commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html