diff --git a/tox.ini b/tox.ini
index 17e2dcf4..199c6fc4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@ deps =
     pretend
     pytest
 commands =
-    coverage run --source {envsitepackagesdir}/twine -m pytest {posargs:tests}
+    coverage run --source twine -m pytest {posargs:tests}
     coverage report -m
 
 [testenv:docs]