# @babel/plugin-transform-react-jsx-source > Add a __source prop to all JSX Elements See our website [@babel/plugin-transform-react-jsx-source](https://babeljs.io/docs/babel-plugin-transform-react-jsx-source) for more information. ## Install Using npm: ```sh npm install --save-dev @babel/plugin-transform-react-jsx-source ``` or using yarn: ```sh yarn add @babel/plugin-transform-react-jsx-source --dev ```