--- setup.py
+++ setup.py
@@ -40,9 +40,7 @@
 from distutils.command.sdist import sdist
 from distutils.core import setup
 
-os.chdir(os.path.dirname(__file__) or ".")
-sys.path.insert(0, os.path.dirname(__file__))
-from nfoview import __version__
+__version__ = os.environ['PV']
 
 
 class Clean(clean):