2 files changed, 3 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 24d5ffe0..a62c9021 100644
--- a/Makefile
+++ b/Makefile
@@ -65,7 +65,7 @@ metahtml:
 # Kitting
 
 kit:
-	python setup.py sdist --formats=gztar
+	python setup.py sdist
 
 wheel:
 	tox -c tox_wheels.ini $(ARGS)
diff --git a/tox.ini b/tox.ini
index 303d2284..df1c9a16 100644
--- a/tox.ini
+++ b/tox.ini
@@ -86,7 +86,8 @@ commands =
     python -m tabnanny {env:LINTABLE}
     python igor.py check_eol
     check-manifest --ignore 'lab*,perf*,doc/sample_html*,.treerc'
-    python setup.py check -r -s
+    python setup.py -q sdist bdist_wheel
+    twine check dist/*
     python -m pylint --notes= {env:LINTABLE}
 
 [travis]