diff --git a/setupext.py b/setupext.py
index ba3013644e69..3df620c5a086 100644
--- a/setupext.py
+++ b/setupext.py
@@ -570,7 +570,7 @@ 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"])