diff --git a/docs/default-theme-config/README.md b/docs/default-theme-config/README.md
index 304220dc0e..29fe814af9 100644
--- a/docs/default-theme-config/README.md
+++ b/docs/default-theme-config/README.md
@@ -294,6 +294,10 @@ module.exports = {
 }
 ```
 
+::: warning Note
+Unlike the built-in VuePress search engine which works out of the box, [Algolia DocSearch](https://community.algolia.com/docsearch/) requires you to submit your site to them for indexing before it starts working. 
+:::
+
 For more options, refer to [Algolia DocSearch's documentation](https://github.com/algolia/docsearch#docsearch-options).
 
 ## Last Updated