diff --git a/tox.ini b/tox.ini
index 7e92fc988..33db75a17 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,11 +3,12 @@ envlist = py27, py34, py35, py36, flake8
 
 [testenv]
 commands =
-    {envbindir}/py.test --tb=short -n auto \
+    {envbindir}/py.test --tb=short -n 4 \
         --junitxml={toxworkdir}/junit-{envname}.xml \
         --cov=dosagelib --cov-config=tox.ini --cov-branch \
         --cov-report=term \
         --cov-report=xml:{toxworkdir}/cov-{envname}.xml \
+        --cov-report=html:{toxworkdir}/cov-{envname} \
         {posargs}