diff --git a/tox.ini b/tox.ini
index af9e22407..647bb08b7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -43,6 +43,10 @@ commands =
 setenv = PYTHONHASHSEED=0
 commands = {posargs:}
 
+[testenv:debug]
+envdir = {toxworkdir}/venv
+commands = oslo_debug_helper -t ironic_python_agent/tests/unit {posargs}
+
 [testenv:devenv]
 envdir = devenv
 usedevelop = True