diff --git a/tox.ini b/tox.ini
index 8638133..90869b2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,7 +14,7 @@ basepython =
     python2.7
 commands =
     coverage run -m zope.testrunner --test-path=src []
-    coverage report #--fail-under=100
+    coverage report --fail-under=100
 deps =
     {[testenv]deps}
     coverage