diff --git a/release.py b/release.py
index da29cece..82c07f3b 100755
--- a/release.py
+++ b/release.py
@@ -32,6 +32,6 @@ call('git push --tags', shell=True)
 
 env = os.environ
 env['CONVERT_README'] = 'true'
-call('rm -rf dist/*')
+call('rm -rf dist/*', shell=True, env=env)
 call('python setup.py sdist bdist_wheel', shell=True, env=env)
 call('twine upload dist/*', shell=True, env=env)