diff --git a/handbook/docs/file-provider.mdx b/handbook/docs/file-provider.mdx
index c6dc22451fcd8b8a785fcd26b925a76afa2cd7f0..f7497da2d5e0600b7451939ca4403f5e76d4fb28 100644
--- a/handbook/docs/file-provider.mdx
+++ b/handbook/docs/file-provider.mdx
@@ -160,7 +160,7 @@ public IActionResult FileDownload()
 [HttpGet, NonUnify]
 public IActionResult FileDownload()
 {
-    return new FileStreamResult(byte数组, "application/octet-stream") {
+    return new FileContentResult(byte数组, "application/octet-stream") {
         FileDownloadName = fileName // 配置文件下载显示名
     };
 }