diff --git a/site/content/tutorial/17-module-context/01-sharing-code/app-a/AudioPlayer.svelte b/site/content/tutorial/17-module-context/01-sharing-code/app-a/AudioPlayer.svelte
index 12d3a78c41..05b37fbb21 100644
--- a/site/content/tutorial/17-module-context/01-sharing-code/app-a/AudioPlayer.svelte
+++ b/site/content/tutorial/17-module-context/01-sharing-code/app-a/AudioPlayer.svelte
@@ -29,5 +29,7 @@
 		on:play={stopOthers}
 		controls
 		{src}
-	></audio>
-</article>
\ No newline at end of file
+	>
+		<track kind="captions"/>
+	</audio>
+</article>