diff --git a/example/src/main/java/io/netty/example/http/file/HttpStaticFileServerHandler.java b/example/src/main/java/io/netty/example/http/file/HttpStaticFileServerHandler.java
index 0ce49c544b..1ecbd15cb5 100644
--- a/example/src/main/java/io/netty/example/http/file/HttpStaticFileServerHandler.java
+++ b/example/src/main/java/io/netty/example/http/file/HttpStaticFileServerHandler.java
@@ -195,7 +195,7 @@ public class HttpStaticFileServerHandler extends SimpleChannelInboundHandler<Ful
             lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
         } else {
             sendFileFuture =
-                    ctx.write(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
+                    ctx.writeAndFlush(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
                             ctx.newProgressivePromise());
             // HttpChunkedInput will write the end marker (LastHttpContent) for us.
             lastContentFuture = sendFileFuture;