diff --git a/tox.ini b/tox.ini
index 0e9ca7ff..7908ae09 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,6 +31,10 @@ commands=
 commands=
     unit2 discover -s tests/unit -p test_*_py2_py3.py
 
+[testenv:pypy]
+commands=
+    unit2 discover -s tests/unit -p test_*_py2_py3.py
+
 [testenv:pylint]
 deps=
     pylint