diff --git a/docs/upgrade.rst b/docs/upgrade.rst
--- a/docs/upgrade.rst
+++ b/docs/upgrade.rst
@@ -241,6 +241,3 @@ To update the hooks of your Git reposito
 .. note::
     Kallithea does not use hooks on Mercurial repositories. This step is thus
     not necessary if you only have Mercurial repositories.
-
-
-.. _virtualenv: http://pypi.python.org/pypi/virtualenv