1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 69d94a0a..c3f55b6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ commands =
     # Build the C extension and test with the CTracer
     {envpython} setup.py --quiet build_ext --inplace
     {envpython} igor.py test_with_tracer c {posargs}
-
+passenv = *
 deps =
     nose
     mock