diff --git a/.zuul.yaml b/.zuul.yaml
index 6d232ed..857a261 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -20,6 +20,7 @@
 
 - project:
     templates:
+      - build-openstack-docs-pti
       - windmill-jobs-fedora-latest
       - windmill-jobs-bionic
     check:
diff --git a/tox.ini b/tox.ini
index dc90799..4d77866 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,7 @@ deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 
 [testenv:docs]
+basepython = python3
 deps = -r{toxinidir}/doc/requirements.txt
 whitelist_externals =
   bash