diff --git a/internal/entity/order.go b/internal/entity/order.go
index 5b14663..fab2f1d 100644
--- a/internal/entity/order.go
+++ b/internal/entity/order.go
@@ -13,6 +13,7 @@ type Order struct {
 	Total        float64     `gorm:"type:numeric;not null;column:total"`
 	Fee          float64     `gorm:"type:numeric;not null;column:fee"`
 	SiteID       *int64      `gorm:"type:numeric;not null;column:site_id"`
+	Site         *Site       `gorm:"foreignKey:SiteID;constraint:OnDelete:CASCADE;"`
 	CreatedAt    time.Time   `gorm:"autoCreateTime;column:created_at"`
 	UpdatedAt    time.Time   `gorm:"autoUpdateTime;column:updated_at"`
 	CreatedBy    int64       `gorm:"type:int;column:created_by"`
diff --git a/internal/handlers/http/customerorder/order.go b/internal/handlers/http/customerorder/order.go
index 978d97b..99a7f77 100644
--- a/internal/handlers/http/customerorder/order.go
+++ b/internal/handlers/http/customerorder/order.go
@@ -233,6 +233,12 @@ func (h *Handler) toOrderDetail(order *entity.Order) *response.OrderDetail {
 		qrCode = order.RefID
 	}
 
+	var siteName string
+
+	if order.Site != nil {
+		siteName = order.Site.Name
+	}
+
 	orderDetail := &response.OrderDetail{
 		ID:           order.ID,
 		QRCode:       qrCode,
@@ -244,6 +250,7 @@ func (h *Handler) toOrderDetail(order *entity.Order) *response.OrderDetail {
 		Status:       order.Status,
 		PaymentLink:  paymentLink,
 		PaymentToken: paymentToken,
+		SiteName:     siteName,
 	}
 
 	orderDetail.OrderItems = make([]response.OrderDetailItem, len(order.OrderItems))
diff --git a/internal/handlers/response/order.go b/internal/handlers/response/order.go
index b009b5a..7eac86d 100644
--- a/internal/handlers/response/order.go
+++ b/internal/handlers/response/order.go
@@ -167,6 +167,7 @@ type PaymentDistribution struct {
 type OrderDetail struct {
 	ID           int64             `json:"id"`
 	QRCode       string            `json:"qr_code"`
+	SiteName     string            `json:"site_name"`
 	FullName     string            `json:"full_name"`
 	Email        string            `json:"email"`
 	PhoneNumber  string            `json:"phone_number"`
diff --git a/internal/repository/orders/order.go b/internal/repository/orders/order.go
index afedceb..702c386 100644
--- a/internal/repository/orders/order.go
+++ b/internal/repository/orders/order.go
@@ -52,6 +52,7 @@ func (r *OrderRepository) FindByID(ctx context.Context, id int64) (*entity.Order
 		Preload("OrderItems", func(db *gorm.DB) *gorm.DB {
 			return db.Preload("Product")
 		}).
+		Preload("Site").
 		Preload("User").
 		Preload("Payment").
 		First(&order, id).Error