diff --git a/setup.py b/setup.py
index d98b731..c15acf9 100644
--- a/setup.py
+++ b/setup.py
@@ -25,6 +25,7 @@ def read(file_name):
     package_data={
         'magic': ['py.typed', '*.pyi', '**/*.pyi'],
     },
+    install_requires=["python-magic-bin; platform_system == 'Windows'"],
     keywords="mime magic file",
     license="MIT",
     python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',