diff --git a/test-requirements.txt b/test-requirements.txt
index d354162..8a03d8e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -15,3 +15,7 @@ testtools>=1.4.0
 
 # releasenotes
 reno>=1.6.2 # Apache2
+
+#api-ref
+openstackdocstheme>=1.5.0 # Apache-2.0
+os-api-ref>=1.0.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index fae58fb..9a70fe4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -59,7 +59,7 @@ commands = oslo_debug_helper {posargs}
 # This environment is called from CI scripts to test and publish
 # the API Ref to developer.openstack.org.
 commands =
-  rm -rf api-ref/build
+  /bin/rm -rf api-ref/build
   sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
 
 [flake8]