diff --git a/setup.py b/setup.py
index b5376cc..9d591a5 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ setuptools.setup(
     # via environment variables, in which case I've tested with 15.0.4
     # "x11_hash" package (1.4) is required to sync DASH network.
     install_requires=['plyvel', 'pylru', 'irc', 'aiohttp >= 1'],
-    packages=setuptools.find_packages(),
+    packages=setuptools.find_packages(exclude=['tests']),
     description='ElectrumX Server',
     author='Neil Booth',
     author_email='kyuupichan@gmail.com',