diff --git a/test/runtime/samples/component-binding-blowback-b/Nested.html b/test/runtime/samples/component-binding-blowback-b/Nested.html
index b69bc2ac8a..2255fe6e17 100644
--- a/test/runtime/samples/component-binding-blowback-b/Nested.html
+++ b/test/runtime/samples/component-binding-blowback-b/Nested.html
@@ -1,7 +1,8 @@
 <script>
 	import { onMount } from 'svelte';
 
-	let id;
+	export let value;
+	export let id;
 
 	const initialValues = {
 		'id-0': 'zero',
diff --git a/test/runtime/samples/component-binding-blowback-b/_config.js b/test/runtime/samples/component-binding-blowback-b/_config.js
index 28f4e81ba0..3d32e93fd4 100644
--- a/test/runtime/samples/component-binding-blowback-b/_config.js
+++ b/test/runtime/samples/component-binding-blowback-b/_config.js
@@ -14,11 +14,11 @@ export default {
 		</ol>
 	`,
 
-	test (assert, component, target, window) {
+	async test(assert, component, target, window) {
 		const input = target.querySelector('input');
 
 		input.value = 4;
-		input.dispatchEvent(new window.Event('input'));
+		await input.dispatchEvent(new window.Event('input'));
 
 		assert.htmlEqual(target.innerHTML, `
 			<input type='number'>
diff --git a/test/runtime/samples/component-binding-blowback-b/main.html b/test/runtime/samples/component-binding-blowback-b/main.html
index b76e639d1d..3c826723e2 100644
--- a/test/runtime/samples/component-binding-blowback-b/main.html
+++ b/test/runtime/samples/component-binding-blowback-b/main.html
@@ -14,8 +14,8 @@
 <input type='number' bind:value={count}>
 
 <ol>
-	{#each ids as id}
-		<Nested {id} bind:value="idToValue[id]">
+	{#each ids() as id}
+		<Nested {id} bind:value={idToValue[id]}>
 			{id}: value is {idToValue[id]}
 		</Nested>
 	{/each}