diff --git a/tox.ini b/tox.ini
index f61c3157..db9d67dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,11 +3,15 @@ envlist = py25, py26, py27, py32
 [testenv]
 setenv =
     XDG_CACHE_HOME={envtmpdir}/cache
+deps =
+    nose
 commands =
     python regression.py
     python run.py
     python refactor.py
+    nosetests --with-doctest --doctest-tests {toxinidir}/jedi
 changedir = test
 [testenv:py25]
 deps =
     simplejson
+    {[testenv]deps}