diff --git a/magneticod/setup.py b/magneticod/setup.py
index d9e9507..b6e256b 100644
--- a/magneticod/setup.py
+++ b/magneticod/setup.py
@@ -44,14 +44,7 @@ def run_setup():
             "Operating System :: POSIX :: Linux",
             "Programming Language :: Python :: 3 :: Only",
             "Programming Language :: Python :: Implementation :: CPython",
-        ],
-
-        ext_modules=[
-            Extension(
-                "magneticod.bencoder._fast",
-                sources=["magneticod/bencoder/_fast.c"],
-            ),
-        ],
+        ]
     )