diff --git a/docs/conf.py b/docs/conf.py
index 384825d040..09715a08c8 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -31,7 +31,7 @@ needs_sphinx = '1.0'
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ["djangodocs", "sphinx.ext.intersphinx"]
+extensions = ["djangodocs", "sphinx.ext.intersphinx", "sphinx.ext.viewcode"]
 
 # Add any paths that contain templates here, relative to this directory.
 # templates_path = []