diff --git a/bl602.svd b/bl602.svd
index ea90ec5..d6c3854 100644
--- a/bl602.svd
+++ b/bl602.svd
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!--
   Copyright (c) 2020 Sipeed Co.,Ltd.
   bl602-pac is licensed under Mulan PSL v2.
@@ -17,7 +18,6 @@
   If you want to debug a program using the PAC crate, debug on target ELF file 
   the PAC, HAL and your application are compiled into.
 -->
-<?xml version="1.0" encoding="utf-8"?>
 <device schemaVersion="1.1" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="CMSIS-SVD.xsd" >
   <vendor>Bouffalo Lab</vendor> <!-- The trademark here mentioned belongs to its owners -->
   <name>BL602</name>