diff --git a/website/docs/search.md b/website/docs/search.md
index 6b7c040152..bba3d8c8ff 100644
--- a/website/docs/search.md
+++ b/website/docs/search.md
@@ -58,14 +58,32 @@ It is highly recommended using a config similar to the [**Docusaurus 2 website c
 
 ### Connecting Algolia {#connecting-algolia}
 
-Docusaurus' own `@docusaurus/preset-classic` supports an Algolia DocSearch integration.
+Docusaurus' own `@docusaurus/preset-classic` supports Algolia DocSearch integration. If you use the classic preset, no additional installation is needed.
 
-To connect your docs with Algolia, first add the package to your website:
+<details>
+<summary>Installation steps when not using <code>@docusaurus/preset-classic</code></summary>
+
+1. Install the package:
 
 ```bash npm2yarn
 npm install --save @docusaurus/theme-search-algolia
 ```
 
+2. Register the theme in `docusaurus.config.js`:
+
+```js title="docusaurus.config.js"
+module.exports = {
+  title: 'My site',
+  // ...
+  themes: ['@docusaurus/theme-search-algolia'],
+  themeConfig: {
+    // ...
+  },
+};
+```
+
+</details>
+
 Then, add an `algolia` field in your `themeConfig`. **[Apply for DocSearch](https://docsearch.algolia.com/apply/)** to get your Algolia index and API key.
 
 ```jsx title="docusaurus.config.js"