diff --git a/tox.ini b/tox.ini
index d4e8925e..5f0e3ded 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,6 @@
 [tox]
 envlist = coverage-{django17,django18}
+toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/passerelle/
 
 [testenv]
 usedevelop =