diff --git a/README.md b/README.md
index f766281..2a636f9 100755
--- a/README.md
+++ b/README.md
@@ -6,6 +6,12 @@
 
 <img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/img/html.gif" alt="HTML autocompletion" width="750">
 
+## Requirements
+
+This extension requires:
+* a `tailwind.config.js` file to be [present in your project folder](https://github.com/bradlc/vscode-tailwindcss/blob/master/package.json#L26). You can create it with `npx tailwind init`.
+* `tailwindcss` to be installed (present in project `node_modules/`)
+
 ## Features
 
 Tailwind CSS IntelliSense uses your projects Tailwind installation and configuration to provide suggestions as you type.