diff --git a/docs/conf.py b/docs/conf.py
index 9750b9e..9f33073 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,6 +18,7 @@ sys.path.insert(0, os.path.abspath('..'))
 
 release = get_distribution('django_select2').version
 version = '.'.join(release.split('.')[:2])
+master_doc = 'index'  # default in Sphinx v2
 
 
 extensions = [