diff --git a/docs/source/conf.py.orig b/docs/source/conf.py
index 50cf366..20cf2c4 100644
--- a/docs/source/conf.py.orig
+++ b/docs/source/conf.py
@@ -30,8 +30,7 @@ for item in os.listdir(root):
 # General configuration
 # ---------------------
 
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest',
-              'sphinx.ext.intersphinx']
+extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']