diff --git a/setup.py b/setup.py
index e20e2ec..a766b54 100755
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,5 @@
 #!/usr/bin/python3
 
-import sys
 
 from setuptools import setup
 from setuptools_rust import Binding, RustExtension
@@ -11,7 +10,7 @@
             "fastbencode._bencode_rs",
             binding=Binding.PyO3,
             py_limited_api=False,
-            optional=sys.platform == "win32",
+            optional=True,
         )
     ],
 )