diff --git a/doc/conf.py b/doc/conf.py
index af714471..1b1fe219 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -108,7 +108,6 @@ for mod_name in MOCK_MODULES:
 on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
 
 import GPy
-version = GPy.__version__
 
 if on_rtd:
     sys.path.append("../GPy")