diff --git a/MANIFEST.in b/MANIFEST.in
index 12c4cc72..52ce7813 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,6 @@
 recursive-include python2 *.py *.txt
 recursive-include python3 *.py *.txt
+graft test
+graft tests
 include python2/httplib2/test/*.txt
 include requirements*.txt