diff --git a/setup.py b/setup.py
index 6a931a6..d2f0760 100644
--- a/setup.py
+++ b/setup.py
@@ -16,4 +16,5 @@ import setuptools
 
 setuptools.setup(
     setup_requires=['pbr'],
-    pbr=True)
+    pbr=True,
+    py_modules=[])