diff --git a/Filer-Server-API.md b/Filer-Server-API.md
index 0474071..9f0e197 100644
--- a/Filer-Server-API.md
+++ b/Filer-Server-API.md
@@ -42,7 +42,8 @@ You can append to any HTTP API with &pretty=y to see a formatted json output.
 
 | GET Parameter | Description | Default |
 | ---- | -- | -- |
-| metadata| get file metadata | empty |
+| metadata | get file metadata | false |
+| resolveManifest | resolve manifest chunks | false |
 ### notice
 * It is recommended to add retries when writing to Filer.
 * `AutoChunking` is not supported for method `PUT`. If the file length is greater than 256MB, only the leading 256MB in the `PUT` request will be saved.
@@ -122,7 +123,7 @@ Examples:
   "ShouldDisplayLoadMore": false
 }
 # get file metadata
-> curl 'http://localhost:8888/test01.py?metadata&pretty=yes'
+> curl 'http://localhost:8888/test01.py?metadata=true&pretty=yes'
 {
   "FullPath": "/test01.py",
   "Mtime": "2022-01-09T19:11:18+08:00",