diff --git a/internal/handler/order_handler.go b/internal/handler/order_handler.go
index 0506e0b..751f3d5 100644
--- a/internal/handler/order_handler.go
+++ b/internal/handler/order_handler.go
@@ -140,6 +140,10 @@ func (h *OrderHandler) ListOrders(c *gin.Context) {
 	if modelReq.OutletID == nil && contextInfo.OutletID != uuid.Nil {
 		modelReq.OutletID = &contextInfo.OutletID
 	}
+	if modelReq.OutletID == nil {
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("validation_failed", "OrderHandler::ListOrders", "outlet_id is required")}), "OrderHandler::ListOrders")
+		return
+	}
 	response, err := h.orderService.ListOrders(c.Request.Context(), modelReq)
 	if err != nil {
 		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("internal_error", "OrderHandler::ListOrders", err.Error())}), "OrderHandler::ListOrders")