diff --git a/setup.py b/setup.py
index c02c9af9c0..d607057909 100644
--- a/setup.py
+++ b/setup.py
@@ -61,7 +61,7 @@
     author="Google LLC",
     author_email="googleapis-packages@google.com",
     license="Apache 2.0",
-    packages=setuptools.find_namespace_packages(exclude=["docs", "tests"]),
+    packages=setuptools.find_namespace_packages(exclude=["docs", "tests", "tests.*"]),
     url=url,
     classifiers=[
         release_status,