diff --git a/Async-Filer-Metadata-Backup.md b/Async-Filer-Metadata-Backup.md
index b8e5916..fe692fc 100644
--- a/Async-Filer-Metadata-Backup.md
+++ b/Async-Filer-Metadata-Backup.md
@@ -16,9 +16,9 @@ See https://github.com/chrislusf/seaweedfs/wiki/Filer-Store-Replication#file-sto
 We can also continuously backup filer metadata to a remote store, without running a filer instance.
 ```
          Metadata Changes
- Filer --------------------> `weed filer.meta.backup` ----> Remote Store(LevelDB/RocksDB/
-                                                                      Mysql/Postgres/
-                                                                      Redis/Cassanra/...)
+ Filer --------------------> `weed filer.meta.backup` ---> Remote Store(LevelDB/RocksDB/
+                                                                        Mysql/Postgres/
+                                                                        Redis/Cassanra/...)
 ```
 Just need to configure the remote store the same way as `filer.toml`.