diff --git a/setup.py b/setup.py
index 9f99b2b..80c6fa3 100755
--- a/setup.py
+++ b/setup.py
@@ -27,12 +27,12 @@ from distutils.command import install_data as module_install_data
 from distutils.util import change_root, convert_path
 
 
-data_files = [('/etc/init.d', [('data/client',0755)]),
+data_files = [('/etc/init.d', [('data/client',0o755)]),
               ('/usr/share/calculate/xdm/login.d',
                             ['data/login.d/10client']),
               ('/usr/share/calculate/xdm/logout.d',
                             ['data/logout.d/10client']),
-              ('/usr/share/calculate/xdm/',[('data/wait_domain',0755)])]
+              ('/usr/share/calculate/xdm/',[('data/wait_domain',0o755)])]
 
 class install_data(module_install_data.install_data):
     def run (self):