diff --git a/setup.py b/setup.py
index 5b128a6df..beb7c1012 100755
--- a/setup.py
+++ b/setup.py
@@ -219,6 +219,7 @@ if 'setuptools' in sys.modules:
         zmq = 'pyzmq>=2.1.4',
         doc = 'Sphinx>=0.3',
         test = 'nose>=0.10.1',
+        notebook = 'tornado>=2.0'
     )
     requires = setup_args.setdefault('install_requires', [])
     setupext.display_status = False