diff --git a/MANIFEST.in b/MANIFEST.in
index 5ea63755..b648edfa 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,7 @@
+include LICENSE
+include Makefile
+include pytest.ini
+include requirements.txt
 include versioneer.py
 include pytng/_version.py
 recursive-include pytng/ *