diff --git a/internal/entities/system_setting.go b/internal/entities/system_setting.go
index ee5beaff..0680fae5 100644
--- a/internal/entities/system_setting.go
+++ b/internal/entities/system_setting.go
@@ -5,11 +5,11 @@ import "time"
 const SystemSettingKeyAllowNegativePakanOVK = "allow_negative_pakan_ovk"
 
 type SystemSetting struct {
-	Key         string    `gorm:"column:key;primaryKey"`
-	Value       string    `gorm:"column:value;not null;default:''"`
-	Description string    `gorm:"column:description"`
-	CreatedAt   time.Time `gorm:"column:created_at;autoCreateTime"`
-	UpdatedAt   time.Time `gorm:"column:updated_at;autoUpdateTime"`
+	Key         string    `gorm:"column:key;primaryKey" json:"key"`
+	Value       string    `gorm:"column:value;not null;default:''" json:"value"`
+	Description string    `gorm:"column:description" json:"description"`
+	CreatedAt   time.Time `gorm:"column:created_at;autoCreateTime" json:"created_at"`
+	UpdatedAt   time.Time `gorm:"column:updated_at;autoUpdateTime" json:"updated_at"`
 }
 
 func (SystemSetting) TableName() string {