diff --git a/setup.py b/setup.py
index 17d9077..52fd424 100755
--- a/setup.py
+++ b/setup.py
@@ -72,12 +72,12 @@ class install_data(module_install_data.install_data):
 
 data_files = []
 
-data_files += [('/etc/init.d', [('data/calculate',0755)]),
-               ('/usr/bin',[('bin/xautologin',0755)]),
+data_files += [('/etc/init.d', [('data/calculate',0o755)]),
+               ('/usr/bin',[('bin/xautologin',0o755)]),
                ('/usr/share/calculate/doc', ['data/handbook-en.html',
                                              'data/handbook-ru.html']),
-               ('/usr/libexec/calculate', [('data/cl-video-install', 0755)]),
-               ('/bin',[('bin/bashlogin',0755)])]
+               ('/usr/libexec/calculate', [('data/cl-video-install', 0o755)]),
+               ('/bin',[('bin/bashlogin',0o755)])]
 
 packages = [
     "calculate."+str('.'.join(root.split(os.sep)[1:]))