diff --git a/packages/next/pages/_app.tsx b/packages/next/pages/_app.tsx
index adb9e94223c32cb32501e65e4997b818e4435f60..8280827e8a30ccca3633e0f7877a920b65cef41b 100644
--- a/packages/next/pages/_app.tsx
+++ b/packages/next/pages/_app.tsx
@@ -27,8 +27,9 @@ async function appGetInitialProps({
return { pageProps }
}
-export default class App
extends React.Component<
- P & AppProps
+export default class App extends React.Component<
+ P & AppProps,
+ S
> {
static childContextTypes = {
router: PropTypes.object,
diff --git a/packages/next/pages/_document.tsx b/packages/next/pages/_document.tsx
index 96e0cb5bc26a1f2119d3800e44c8718efe53b7f9..d0b7029a09857ddc35b04c9037cd3e0adeb6cf5e 100644
--- a/packages/next/pages/_document.tsx
+++ b/packages/next/pages/_document.tsx
@@ -58,7 +58,7 @@ export default class Document extends Component {
}
/**
- * `getInitialProps` hook returns the context object with the addition of `renderPage`. `
+ * `getInitialProps` hook returns the context object with the addition of `renderPage`.
* `renderPage` callback executes `React` rendering logic synchronously to support server-rendering wrappers
*/
static async getInitialProps({