diff --git a/example/lib/main.dart b/example/lib/main.dart
index 8044f17e..c57109d2 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -20,6 +20,7 @@ class MyApp extends StatefulWidget {
 class _MyAppState extends State<MyApp> {
   final _appLifecycleListener = AppLifecycleListener(
     onExitRequested: () async {
+      // Stop Rust tasks before closing the Flutter app.
       await RustInFlutter.ensureFinalized();
       return AppExitResponse.exit;
     },