diff --git a/tox.ini b/tox.ini
index 868e95aa..860f0fea 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,6 +27,11 @@ commands = python setup.py build_sphinx
 [testenv:debug]
 commands = oslo_debug_helper -t translator/tests {posargs}
 
+[testenv:py27-tosca-master]
+commands =
+    pip install -q -U -e "git+https://git.openstack.org/openstack/tosca-parser.git#egg=tosca_parser"
+    python setup.py test --slowest --testr-args='{posargs}'
+
 [flake8]
 # H803 skipped on purpose per list discussion.
 # E123, E125 skipped as they are invalid PEP-8.