diff --git a/update.sh b/update.sh
index a20fb67..97a4405 100644
--- a/update.sh
+++ b/update.sh
@@ -14,6 +14,8 @@ cp /etc/bird.old/vars.conf /etc/bird/vars.conf.dis
 chmod -R 755 /etc/bird
 
 echo "请务必检查配置文件，修改vars文件名，并重新启动bird"
+cd 
+rm -rf bird_config
 
 cd 
 rm update.sh
\ No newline at end of file