1 files changed, 2 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index f876f1c..a4fe50e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,11 +4,12 @@ envlist = {py27,py34,py35,py36,py37,py38}-{plain,hiredis}, pycodestyle
 
 [testenv]
 deps =
+    coverage
     mock
     pytest >= 2.7.0
 extras =
     hiredis: hiredis
-commands = py.test {posargs}
+commands = {envpython} -m coverage run -m pytest {posargs}
 
 [testenv:pycodestyle]
 basepython = python3.6