diff --git a/docs/guide/quick-start.md b/docs/guide/quick-start.md
index dec220f..a11933f 100644
--- a/docs/guide/quick-start.md
+++ b/docs/guide/quick-start.md
@@ -312,6 +312,7 @@ const output = new Output({
 const uploadComplete = fetch('https://example.com/upload', {
 	method: 'POST',
 	body: readable,
+	duplex: 'half',
 	headers: {
 		'Content-Type': output.format.mimeType,
 	},