diff --git a/tutorial/tutorial-05-http_proxy.cc b/tutorial/tutorial-05-http_proxy.cc
index 6dcae329..9690e03b 100644
--- a/tutorial/tutorial-05-http_proxy.cc
+++ b/tutorial/tutorial-05-http_proxy.cc
@@ -68,8 +68,8 @@ void http_callback(WFHttpTask *task)
 		context->proxy_task->set_callback(reply_callback);
 
 		/* Copy the remote webserver's response, to proxy response. */
-		if (resp->get_parsed_body(&body, &len))
-			resp->append_output_body_nocopy(body, len);
+		resp->get_parsed_body(&body, &len);
+		resp->append_output_body_nocopy(body, len);
 		*proxy_resp = std::move(*resp);
 		if (!context->is_keep_alive)
 			proxy_resp->set_header_pair("Connection", "close");