diff --git a/setup.py b/setup.py
index d54f924..0a6597a 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ from setuptools.command import build_ext
 import subprocess
 import os
 
-EXT = ['build/libminiupnpc.a']
+EXT = ['build/libminiupnpc.so']
 
 class make_then_build_ext(build_ext.build_ext):
       def run(self):
