diff --git a/lib/py/setup.py b/lib/py/setup.py
index 99b7172..d065573 100644
--- a/lib/py/setup.py
+++ b/lib/py/setup.py
@@ -117,6 +117,7 @@
               'Topic :: Software Development :: Libraries',
               'Topic :: System :: Networking'
           ],
+          zip_safe=False,
           **extensions
           )