diff --git a/tox.ini b/tox.ini
index 6c5e6b898..abb0d60bc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,6 +31,7 @@ basepython = python3
 commands = flake8
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 passenv = *