diff --git a/MAINFEST.in b/MAINFEST.in
index 9c8317c..a6f4c6c 100644
--- a/MAINFEST.in
+++ b/MAINFEST.in
@@ -1,2 +1,3 @@
 include LICENSE
-include README.rst
\ No newline at end of file
+include README.rst
+recursive-include tests *.py *.md