diff --git a/tox.ini b/tox.ini
index 12876988cc..f987447740 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,11 @@ commands = openstack-doc-test --check-deletions {posargs}
 [testenv:checkbuild]
 commands = openstack-doc-test --check-build {posargs}
 
+[testenv:publishdocs]
+# Prepare all documents (except www subdir) so that they can get
+# published on docs.openstack.org with just copying publish-docs/*
+# over.
+commands = openstack-doc-test --check-build --nocreate-index --force
 
 [testenv:buildlang-install]
 # Run as "tox -e buildlang-install -- $LANG"