diff --git a/tox.ini b/tox.ini
index 3960a7808..973972538 100644
--- a/tox.ini
+++ b/tox.ini
@@ -127,3 +127,11 @@ max-complexity=30
 [hacking]
 local-check-factory = cinder.hacking.checks.factory
 import_exceptions = cinder.i18n
+
+[testenv:pip-missing-reqs]
+# do not install test-requirements as that will pollute the virtualenv for
+# determining missing packages
+# this also means that pip-missing-reqs must be installed separately, outside
+# of the requirements.txt files
+deps = pip_missing_reqs
+commands = pip-missing-reqs -d --ignore-file=cinder/tests/* cinder