diff --git a/docs/conf.py b/docs/conf.py
index ed1a7e2..d4e8f29 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -54,6 +54,7 @@
 # generate autosummary even if no references
 autosummary_generate = True
 
+master_doc = 'index'
 
 # -- Options for HTML output -------------------------------------------------