diff --git a/MANIFEST.in b/MANIFEST.in
index c6c12dc..a7c625e 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,3 @@
 include license.bsd license.lgpl readme.rst
 recursive-include docs *.html *.css *.png *.gif *.js
+recursive-include tests *.py