--- a/MANIFEST.in	Thu Apr 09 23:10:08 2020 +0800
+++ b/MANIFEST.in	Thu Apr 09 23:35:20 2020 +0800
@@ -8,10 +8,7 @@
 include MANIFEST.in
 include README
 include setup.py
-include tests/*.py
-include tests/*.sh
-include tests/testlib/*.sh
-include tests/*.t
+recursive-include tests *.py *.sh *.t
 
 include docs/makefile
 include docs/*.py