diff --git a/cachalot/__init__.py b/cachalot/__init__.py
index 8bf386a..7140b7d 100644
--- a/cachalot/__init__.py
+++ b/cachalot/__init__.py
@@ -1,4 +1,4 @@
-__version__ = (1, 1, 0)
-version_string = '.'.join(str(n) for n in __version__)
+VERSION = (1, 1, 0)
+__version__ = '.'.join(map(str, VERSION))
 
 default_app_config = 'cachalot.apps.CachalotConfig'
diff --git a/docs/conf.py b/docs/conf.py
index 1d292d7..b967d44 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -65,9 +65,9 @@ copyright = '2014-2015, Bertrand Bordage'
 # built documents.
 #
 # The short X.Y version.
-version = '%s.%s' % cachalot.__version__[:2]
+version = '%s.%s' % cachalot.VERSION[:2]
 # The full version, including alpha/beta/rc tags.
-release = cachalot.version_string
+release = cachalot.__version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index 13cfb8a..d12adb6 100755
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 import os
 from setuptools import setup, find_packages
-from cachalot import version_string
+from cachalot import __version__
 
 
 CURRENT_PATH = os.path.abspath(os.path.dirname(__file__))
@@ -13,7 +13,7 @@ with open(os.path.join(CURRENT_PATH, 'requirements.txt')) as f:
 
 setup(
     name='django-cachalot',
-    version=version_string,
+    version=__version__,
     author='Bertrand Bordage',
     author_email='bordage.bertrand@gmail.com',
     url='https://github.com/BertrandBordage/django-cachalot',