diff --git a/tox.ini b/tox.ini
index a5903b4..036ee40 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,6 +15,7 @@ commands = python setup.py testr --slowest --testr-args='{posargs}'
 commands =
     coverage run -m discover
     coverage report --omit="tests/*" --show-missing
+    coverage html --omit="tests/*" -d cover
 
 [testenv:py26]
 deps = -r{toxinidir}/requirements.txt