diff --git a/DuDoong-Api/src/main/java/band/gosrock/api/order/model/dto/response/OrderBriefElement.java b/DuDoong-Api/src/main/java/band/gosrock/api/order/model/dto/response/OrderBriefElement.java
index cc767ae9..1c7bb20d 100644
--- a/DuDoong-Api/src/main/java/band/gosrock/api/order/model/dto/response/OrderBriefElement.java
+++ b/DuDoong-Api/src/main/java/band/gosrock/api/order/model/dto/response/OrderBriefElement.java
@@ -37,7 +37,7 @@ public class OrderBriefElement {
     private final String itemName;
 
     @Schema(description = "아이템 총 갯수")
-    private final int totalQuantity;
+    private final Long totalQuantity;
 
     public static OrderBriefElement of(Order order, Event event, IssuedTickets issuedTickets) {
         return OrderBriefElement.builder()
@@ -48,7 +48,7 @@ public static OrderBriefElement of(Order order, Event event, IssuedTickets issue
                 .orderStatus(order.getOrderStatus())
                 .eventProfile(event.toEventProfileVo())
                 .itemName(order.getOrderName())
-                .totalQuantity(issuedTickets.getTotalQuantity())
+                .totalQuantity(order.getTotalQuantity())
                 .build();
     }
 }