diff --git a/res.py b/res.py
index 3f923af830..ae228c364e 100644
--- a/res.py
+++ b/res.py
@@ -15,8 +15,8 @@ class User:
     def __setup__(cls):
         super(User, cls).__setup__()
         cls._error_messages.update({
-                'set_passwd_ldap_user': \
-                    'You can not set a password to a ldap user!',
+                'set_passwd_ldap_user': (
+                    'You can not set a password to a ldap user!'),
                 })
 
     @staticmethod
diff --git a/setup.py b/setup.py
index 90acf25032..5fe29a0cd2 100644
--- a/setup.py
+++ b/setup.py
@@ -25,10 +25,10 @@ requires = ['python-ldap']
 for dep in info.get('depends', []):
     if not re.match(r'(ir|res|webdav)(\W|$)', dep):
         requires.append('trytond_%s >= %s.%s, < %s.%s' %
-                (dep, major_version, minor_version, major_version,
-                    minor_version + 1))
+            (dep, major_version, minor_version, major_version,
+                minor_version + 1))
 requires.append('trytond >= %s.%s, < %s.%s' %
-        (major_version, minor_version, major_version, minor_version + 1))
+    (major_version, minor_version, major_version, minor_version + 1))
 
 setup(name='trytond_ldap_authentication',
     version=info.get('version', '0.0.1'),
@@ -36,16 +36,16 @@ setup(name='trytond_ldap_authentication',
     long_description=read('README'),
     author='Tryton',
     url='http://www.tryton.org/',
-    download_url="http://downloads.tryton.org/" + \
-        info.get('version', '0.0.1').rsplit('.', 1)[0] + '/',
+    download_url=("http://downloads.tryton.org/" +
+        info.get('version', '0.0.1').rsplit('.', 1)[0] + '/'),
     package_dir={'trytond.modules.ldap_authentication': '.'},
     packages=[
         'trytond.modules.ldap_authentication',
         'trytond.modules.ldap_authentication.tests',
         ],
     package_data={
-        'trytond.modules.ldap_authentication': info.get('xml', []) \
-            + ['tryton.cfg', 'locale/*.po'],
+        'trytond.modules.ldap_authentication': (info.get('xml', [])
+            + ['tryton.cfg', 'locale/*.po']),
         },
     classifiers=[
         'Development Status :: 5 - Production/Stable',
@@ -67,8 +67,8 @@ setup(name='trytond_ldap_authentication',
         'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
         'Topic :: Office/Business',
-        'Topic :: System :: Systems Administration ' \
-            ':: Authentication/Directory :: LDAP',
+        ('Topic :: System :: Systems Administration '
+            ':: Authentication/Directory :: LDAP'),
         ],
     license='GPL-3',
     install_requires=requires,