diff --git a/Makefile b/Makefile
index b45647b8..adf0b8f1 100644
--- a/Makefile
+++ b/Makefile
@@ -50,8 +50,7 @@ idna:
 
 publish:
 	pip install 'twine>=1.5.0'
-	python setup.py sdist
-	python setup.py bdist_wheel --universal
+	python setup.py sdist bdist_wheel
 	twine upload dist/*
 	rm -fr build dist .egg requests.egg-info
 
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 00000000..2a9acf13
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal = 1