diff --git a/tox.ini b/tox.ini
index 2b8e442..e37b636 100644
--- a/tox.ini
+++ b/tox.ini
@@ -59,3 +59,6 @@ deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt
+
+[testenv:debug]
+commands = oslo_debug_helper -t oslo_limit/tests {posargs}