diff --git a/tox.ini b/tox.ini
index b28a3e5f6..6b745d1eb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,6 +17,6 @@ python=python3.1
 changedir=testing
 python=jython
 argv=jython
-    {envtmpdir}/../bin/py.test 
+    {envtmpdir}/../bin/py.test-jython
     --confcutdir=..
     --junitxml=junit-{envname}.xml