diff --git a/tox.ini b/tox.ini
index b53ad5047..6dbbcfa12 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,6 +2,7 @@
 changedir=testing
 argv=py.test
     --basetemp={envtmpdir}
+    --confcutdir=..
     --junitxml=junit-{envname}.xml
 [testenv:py26]
 python=python2.6