diff --git a/setup.py b/setup.py
index dbef6b7..24c8adb 100644
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,7 @@
     keywords="gmail notmuch synchronization tags",
     # You can just specify the packages manually here if your project is
     # simple. Or you can use find_packages().
-    packages=find_packages(),
+    packages=find_packages(exclude=["tests"]),
     # Alternatively, if you want to distribute just a my_module.py, uncomment
     # this:
     #   py_modules=["my_module"],