diff --git a/MANIFEST.in b/MANIFEST.in
index 234c77366..78995b2eb 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -11,4 +11,7 @@ include COPYING
 include README.md
 include run_cross_test.py
 include run_tests.py
+include run_unittests.py
+include run_project_tests.py
 include ghwt.py
+include __main__.py