diff --git a/tox.ini b/tox.ini
index 111413f0a..b28a3e5f6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,7 @@ python=python3.1
 #[testenv:pypy]
 #python=pypy-c
 [testenv:jython]
+changedir=testing
 python=jython
 argv=jython
     {envtmpdir}/../bin/py.test