diff --git a/tox.ini b/tox.ini
index cf07b5c1..b0d9190c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -85,3 +85,10 @@ deps = pip_check_reqs
 commands=
     pip-extra-reqs -d --ignore-file=refstack/tests/* refstack
     pip-missing-reqs -d --ignore-file=refstack/tests/* refstack
+
+[testenv:debug]
+commands = oslo_debug_helper -t refstack/tests/unit {posargs}
+
+[testenv:debug35]
+basepython = python3.5
+commands = oslo_debug_helper -t refstack/tests/unit {posargs}