diff --git a/setup.py b/setup.py
index d8c3311..2d9eaa6 100644
--- a/setup.py
+++ b/setup.py
@@ -33,8 +33,6 @@
 )
 
 setup(
-    packages=["crc32c"],
-    package_dir={"": "src"},
     package_data={"crc32c": ["*.pyi", "py.typed", "ext/*.h"]},
     ext_modules=[crcmod_ext],
 )