diff --git a/docs/src/pages/demos/dialogs/AlertDialog.js b/docs/src/pages/demos/dialogs/AlertDialog.js
index 537aac9a430bdd..5f6bea1b5ddd5b 100644
--- a/docs/src/pages/demos/dialogs/AlertDialog.js
+++ b/docs/src/pages/demos/dialogs/AlertDialog.js
@@ -38,7 +38,7 @@ export default class AlertDialog extends React.Component {
-