diff --git a/Filer-Server-API.md b/Filer-Server-API.md
index 3803a57..ada5267 100644
--- a/Filer-Server-API.md
+++ b/Filer-Server-API.md
@@ -84,5 +84,5 @@ curl  "http://localhost:8888/javascript/?pretty=y&lastFileName=new_name.js&limit
 
 // For Experts Only: remove filer directories only, without removing data chunks. 
 // see https://github.com/chrislusf/seaweedfs/pull/1153
-> curl -X DELETE http://localhost:8888/path/to?recursive=true&shouldDeleteChunks=true
+> curl -X DELETE http://localhost:8888/path/to?recursive=true&skipChunkDeletion=true
 ```