diff --git a/Filer-Commands-and-Operations.md b/Filer-Commands-and-Operations.md
index 1440778..5296050 100644
--- a/Filer-Commands-and-Operations.md
+++ b/Filer-Commands-and-Operations.md
@@ -2,12 +2,12 @@ Filer is similar to common file systems and people may ask for similar tools.
 
 ## Copy to Filer
 
-`weed copy` can copy one or a list of files or directories to filer.
+`weed filer.copy` can copy one or a list of files or directories to filer.
 
 ```
 // copy all go files under current directory to filer's /github/ folder.
 // The directory structure is copied also.
-> weed copy -include *.go . http://localhost:8888/github/
+> weed filer.copy -include *.go . http://localhost:8888/github/
 ...
 Copy ./unmaintained/change_replication/change_replication.go => http://localhost:8888/github/./unmaintained/change_replication/change_replication.go
 Copy ./unmaintained/fix_dat/fix_dat.go => http://localhost:8888/github/./unmaintained/fix_dat/fix_dat.go