diff --git a/internal/model/cast.go b/internal/model/cast.go
index f97df07..880bef3 100644
--- a/internal/model/cast.go
+++ b/internal/model/cast.go
@@ -123,3 +123,8 @@ type CastWorkLog struct {
 func (m *CastWorkLog) TableName() string {
 	return "cast_work_log"
 }
+
+type CostLogPo struct {
+	CostLog
+	CostType int `gorm:"column:cost_type;type:int(11)" json:"costType"`
+}