diff --git a/MANIFEST.in b/MANIFEST.in
index 44e3d86c..9102318a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -2,7 +2,7 @@ include AUTHORS
 include LICENSE
 include README.rst
 recursive-include example *
-recursive-exclude example *.pyc *.pyo
+recursive-include tests *
 
 global-exclude __pycache__
 global-exclude *.py[co]