diff --git a/plugin/baidu/search.go b/plugin/baidu/search.go
index c15d8f5e..ed32bcdc 100644
--- a/plugin/baidu/search.go
+++ b/plugin/baidu/search.go
@@ -1,3 +1,4 @@
+// Package baidu 百度一下
 package baidu
 
 import (