diff --git a/tox.ini b/tox.ini
index ef91b3ed40a..26e8428925f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,8 +23,9 @@ commands =
 basepython = python2.7
 setenv = {[testenv]setenv}
          OS_TEST_PATH=./neutron/tests/api
-         TEMPEST_CONFIG_DIR={env:TEMPEST_CONFIG_DIR:/opt/stack/tempest/etc}
          OS_TEST_API_WITH_REST=1
+# If you are running the tests locally you should set the env variable
+# TEMPEST_CONFIG_DIR=/opt/stack/tempest/etc
 
 [testenv:common]
 # Fake job to define environment variables shared between dsvm/non-dsvm jobs