diff --git a/MANIFEST.in b/MANIFEST.in
index 1d6d0618..76ddd09b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,5 @@
 include setup.py README.rst MANIFEST.in LICENSE *.txt
 recursive-include raven/contrib/zope *.xml
 recursive-include raven/data *
+graft tests
 global-exclude *~