diff --git a/setup.py b/setup.py
index f4c0730..6424e46 100644
--- a/setup.py
+++ b/setup.py
@@ -58,5 +58,5 @@ setup(
 
     # You can just specify the packages manually here if your project is
     # simple. Or you can use find_packages().
-    py_modules=['adafruit_ads1x15'],
+    packages=['adafruit_ads1x15'],
 )