diff --git a/tox.ini b/tox.ini
index 198adfd..7264148 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,6 @@
 [tox]
 envlist = py27, flake8
+recreate = True
 
 [flake8]
 exclude = venv/*, dist/*, build/*