diff --git a/readme-en.md b/readme-en.md
index a1b1ffb3..99aa4dfd 100755
--- a/readme-en.md
+++ b/readme-en.md
@@ -136,7 +136,7 @@ A good trading strategy needs a good stock.
 
 Good metric give you right direction. 
 
-1. basic useage about metric
+1. basic usage about metric
 2. visualization on metrics
 3. expand self-custom metric