diff --git a/tox.ini b/tox.ini
index 15218a1..77df69a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,11 @@ deps =
 commands =
     py.test {posargs}
 
+[testenv:venv]
+deps =
+    .
+commands = {posargs}
+
 [testenv:flake8]
 skipsdist = true
 skip_install = true