1 files changed, 3 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 0a01fef..919ad6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,7 +13,9 @@ deps =
     pytest-cov >= 2.10.0
 extras =
     hiredis: hiredis
-commands = {envpython} -b -m coverage run -m pytest -W always {posargs}
+commands =
+    {envpython} -b -m coverage run -p -m pytest -W always {posargs}
+    {envpython} -b -m coverage combine --append
 
 [testenv:flake8]
 basepython = python3.6