diff --git a/docs/conf.py b/docs/conf.py
index c55fa2f..25db355 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -4,7 +4,7 @@ import os, pkginfo
 on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
 pkg_info = pkginfo.Develop(os.path.join(os.path.dirname(__file__), os.pardir))
 
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.intersphinx']
+extensions = ['sphinx.ext.autodoc']
 source_suffix = '.rst'
 master_doc = 'index'
 project = u'xlwt'