diff --git a/MANIFEST.in b/MANIFEST.in
index f8d9c2ae6b..3616212e85 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,4 @@
-include Makefile CHANGES LICENSE AUTHORS
+include Makefile CHANGES LICENSE AUTHORS tox.ini
 
 graft artwork
 graft tests