diff --git a/mypy/version.py b/mypy/version.py
index 3bd292fb7037c..eef67a1841520 100644
--- a/mypy/version.py
+++ b/mypy/version.py
@@ -2,7 +2,7 @@
 from mypy import git
 
 __version__ = '0.4.6-dev'
-## base_version = __version__
+base_version = __version__
 
 ## mypy_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
 ## if git.is_git_repo(mypy_dir) and git.have_git():