diff --git a/tox.ini b/tox.ini
index 431acebf..eb917aae 100644
--- a/tox.ini
+++ b/tox.ini
@@ -38,7 +38,7 @@ commands =
 minversion=2.0
 testpaths = testing
 #--pyargs --doctest-modules --ignore=.tox
-addopts=-ra
+addopts=-r a
 filterwarnings =
   error