diff --git a/Filer-Store-Replication.md b/Filer-Store-Replication.md
index 70b658c..da38804 100644
--- a/Filer-Store-Replication.md
+++ b/Filer-Store-Replication.md
@@ -1,4 +1,4 @@
-Here we talk about using `weed filer -peers=...`. It actually achieves two purposes:
+Here we talk about using `weed filer -peers=...`, which achieves two purposes:
 1. Aggregate filer meta data changes from peers
 2. Replay filer meta data changes to local filer store