diff --git a/doc/usage/extensions/intersphinx.rst b/doc/usage/extensions/intersphinx.rst
index f06c5bcf7..b8050f5c9 100644
--- a/doc/usage/extensions/intersphinx.rst
+++ b/doc/usage/extensions/intersphinx.rst
@@ -155,6 +155,7 @@ Using Intersphinx with inventory file under login
 If the inventory file is under login,
 you can still use Intersphinx if the site supports Basic Authorization::
 
-      intersphinx_mapping = {'python': ('https://user:password@docs.python.org/3', None)}
+      intersphinx_mapping = {'python': ('https://user:password@docs.python.org/3',
+                                        None)}
 
 The user and password will be stripped from the URL when generating the links.