diff --git a/trade/jsontypes/types.go b/trade/jsontypes/types.go
index 7a4caac..3b3e92c 100644
--- a/trade/jsontypes/types.go
+++ b/trade/jsontypes/types.go
@@ -71,6 +71,7 @@ type AccountBalance struct {
 	InitMargin             string      `json:"init_margin"`
 	MaintenanceMargin      string      `json:"maintenance_margin"`
 	Currency               string      `json:"currency"`
+	BuyPower               string      `json:"buy_power"`
 	CashInfos              []*CashInfo `json:"cash_infos"`
 }
 
diff --git a/trade/types.go b/trade/types.go
index c1630b1..3904232 100644
--- a/trade/types.go
+++ b/trade/types.go
@@ -246,6 +246,7 @@ type AccountBalance struct {
 	InitMargin             *decimal.Decimal // initial margin
 	MaintenanceMargin      *decimal.Decimal // maintenance margin
 	Currency               string
+	BuyPower               *decimal.Decimal
 	CashInfos              []*CashInfo
 }