--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
     license="LGPL",
     url="https://storm.canonical.com",
     download_url="https://launchpad.net/storm/+download",
-    packages=find_packages(),
+    packages=find_packages(exclude=['tests']),
     package_data={"": ["*.zcml"]},
     classifiers=[
         "Development Status :: 5 - Production/Stable",