diff --git a/setup.py b/setup.py
index d3f2e5e83..28a7e9e66 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,6 @@ def my_customize_compiler(compiler):
 if platform.python_implementation() == 'PyPy':
     sysconfig.customize_compiler = my_customize_compiler
 
-
 #def install_headers():
 #    dest_dir = path.join(sys.prefix, 'include', 'murmurhash')
 #    if not path.exists(dest_dir):
@@ -117,7 +116,7 @@ def run_setup(exts):
 def main(modules, is_pypy):
     language = "cpp"
     includes = ['.', path.join(sys.prefix, 'include')]
-    compile_args = ['-O3']
+    compile_args = ['-O3', '-Wno-strict-prototypes']
     link_args = []
     if sys.prefix == 'darwin':
         compile_args.append(['-mmacosx-version-min=10.8', '-stdlib=libc++'])