diff --git a/tox.ini b/tox.ini
index 2c792d1735..b5ed9dab5f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,6 @@ downloadcache = ~/cache/pip
 [testenv:pep8]
 commands =
   flake8 {posargs}
-  {toxinidir}/tools/config/check_uptodate.sh
   # Check that .po and .pot files are valid:
   bash -c "find ironic -type f -regex '.*\.pot?' -print0|xargs -0 -n 1 msgfmt --check-format -o /dev/null"
 
@@ -29,7 +28,15 @@ setenv = VIRTUAL_ENV={envdir}
 commands =
   python setup.py testr --coverage {posargs}
 
+[testenv:checkconfig]
+sitepackages = False
+envdir = {toxworkdir}/venv
+commands =
+  {toxinidir}/tools/config/check_uptodate.sh
+
 [testenv:genconfig]
+sitepackages = False
+envdir = {toxworkdir}/venv
 commands =
   bash tools/config/generate_sample.sh -b . -p ironic -o etc/ironic