diff --git a/doc/source/conf.py b/doc/source/conf.py
index 0e03c9acf9..179a62bb6b 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -33,7 +33,6 @@ sys.path.extend([
 extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.doctest',
-    'sphinx.ext.intersphinx',
     'sphinx.ext.todo',
     'sphinx.ext.coverage',
     'sphinx.ext.ifconfig',
@@ -258,7 +257,3 @@ texinfo_documents = [
 
 # How to display URL addresses: 'footnote', 'no', or 'inline'.
 #texinfo_show_urls = 'footnote'
-
-
-# Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'http://docs.python.org/': None}