diff --git a/setup.py b/setup.py
index a38157f6..fdcbac87 100644
--- a/setup.py
+++ b/setup.py
@@ -59,4 +59,5 @@
     python_requires='>=3.7',
     setup_requires=['hpy>0.0.2'],
     hpy_ext_modules=ext_modules,
+    py_modules=[]
 )