diff --git a/packages/frontend/test/url-preview.test.ts b/packages/frontend/test/url-preview.test.ts
index 4b79d33348..b5a5337249 100644
--- a/packages/frontend/test/url-preview.test.ts
+++ b/packages/frontend/test/url-preview.test.ts
@@ -98,7 +98,7 @@ describe('MkUrlPreview', () => {
 		assert.strictEqual(iframe?.src, 'https://example.local/player?autoplay=1&auto_play=1');
 		assert.strictEqual(
 			iframe?.sandbox.toString(),
-			'allow-popups allow-scripts allow-storage-access-by-user-activation allow-same-origin',
+			'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-storage-access-by-user-activation allow-same-origin',
 		);
 	});