diff --git a/MANIFEST.in b/MANIFEST.in
index bb1b0f3e..e870a411 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,4 +6,5 @@ global-include *.pyi
 
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]
+prune .tox
 prune venv*