diff --git a/setupext.py b/setupext.py
index 2f1b1b5e4b12..3e8b382ccc3a 100644
--- a/setupext.py
+++ b/setupext.py
@@ -577,7 +577,7 @@ def get_package_data(self):
 
 class Tests(OptionalPackage):
     name = "tests"
-    default_config = True
+    default_config = False
 
     def get_packages(self):
         return setuptools.find_packages("lib", include=["*.tests"])