diff --git a/bbgo/kline.go b/bbgo/kline.go
index b8c9d88c2..054a537d2 100644
--- a/bbgo/kline.go
+++ b/bbgo/kline.go
@@ -88,7 +88,7 @@ func (k KLine) GetChange() float64 {
 }
 
 func (k KLine) String() string {
-	return fmt.Sprintf("%s %s Open: % 14s Close: % 14s High: % 14s Low: % 14s Volume: % 13s Change: % 13f %s", k.Symbol, k.Interval, k.Open, k.Close, k.High, k.Low, k.Volume, k.GetChange(), k.Interval)
+	return fmt.Sprintf("%s %s Open: % 14s Close: % 14s High: % 14s Low: % 14s Volume: % 13s Change: % 13f Max Change: % 13f", k.Symbol, k.Interval, k.Open, k.Close, k.High, k.Low, k.Volume, k.GetChange(), k.GetMaxChange())
 }
 
 type KLineWindow []KLine