diff --git a/MANIFEST.in b/MANIFEST.in
index b07d6f7..e9ff42e 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,6 @@
 include *.md
 include *.txt
+include tox.ini
 recursive-include docs *.bat
 recursive-include docs *.py
 recursive-include docs *.rst