diff --git a/setup.py b/setup.py
index 7a24314..9e3cddd 100644
--- a/setup.py
+++ b/setup.py
@@ -28,6 +28,7 @@ setup(
     description='Web frontend for PuppetDB',
     include_package_data=True,
     long_description='\n'.join((README, CHANGELOG)),
+    zip_safe=False,
     install_requires=[
         "Flask >= 0.10.1",
         "Flask-WTF >= 0.12, <= 0.13",