1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 4bb8693..f4c84dc 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from distutils.core import setup, Extension
 
 version = '0.0.1'
 
-msgpack_mod = Extension('msgpack', sources=['msgpack.c'], extra_compile_args=["-O3"])
+msgpack_mod = Extension('msgpack', sources=['msgpack.cpp'])
 
 desc = 'MessagePack serializer/desirializer.'
 long_desc = desc + """