diff --git a/.gitignore b/.gitignore
index e63dffc..8699683 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@
 *.egg-info/
 *.egg/
 .coverage
+coverage.xml
 .project
 .idea/
 .pydevproject
diff --git a/tox.ini b/tox.ini
index cff1ea7..0b79eca 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ deps =
     djangodev: https://github.com/django/django/tarball/master
 commands=
     coverage run --source polymorphic runtests.py
+    coverage xml -i
 
 [testenv:docs]
 deps=Sphinx