diff --git a/tox.ini b/tox.ini
index 57ecdbd..7096e60 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = pep8,py35,py34,py27
+envlist = pep8,py35,py34,py27,pip-check-reqs
 minversion = 2.3.1
 skipsdist = True
 
@@ -158,3 +158,14 @@
 
 [testenv:releasenotes]
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
+
+[testenv:pip-check-reqs]
+# Do not install test-requirements as that will pollute the virtualenv for
+# determining missing packages.
+# This also means that pip-check-reqs must be installed separately, outside
+# of the requirements.txt files
+deps = pip_check_reqs
+       -r{toxinidir}/requirements.txt
+commands=
+    pip-extra-reqs -d --ignore-file=tempest/tests/* tempest
+    pip-missing-reqs -d --ignore-file=tempest/tests/* tempest