diff --git a/src/main/java/com/selfrunner/gwalit/domain/board/service/BoardService.java b/src/main/java/com/selfrunner/gwalit/domain/board/service/BoardService.java
index 01c7765e..b3c5d4c1 100644
--- a/src/main/java/com/selfrunner/gwalit/domain/board/service/BoardService.java
+++ b/src/main/java/com/selfrunner/gwalit/domain/board/service/BoardService.java
@@ -264,6 +264,9 @@ public BoardFileRes getFileCapacity(Member member, Long lectureId) {
 
         // Business Logic
         Long fileCapacity = fileRepository.findCapacityByLectureId(lectureId);
+        if(fileCapacity == null) {
+            fileCapacity = 0L;
+        }
 
         return new BoardFileRes(lectureId, fileCapacity);
     }
diff --git a/src/main/java/com/selfrunner/gwalit/domain/notification/dto/response/NotificationRes.java b/src/main/java/com/selfrunner/gwalit/domain/notification/dto/response/NotificationRes.java
index a2ab75b6..07a78be4 100644
--- a/src/main/java/com/selfrunner/gwalit/domain/notification/dto/response/NotificationRes.java
+++ b/src/main/java/com/selfrunner/gwalit/domain/notification/dto/response/NotificationRes.java
@@ -26,6 +26,8 @@ public class NotificationRes {
 
     private final String url;
 
+    private final Long boardId;
+
     private final LocalDateTime createdAt;
 
     public NotificationRes(Notification notification) {
@@ -37,6 +39,7 @@ public NotificationRes(Notification notification) {
         this.lectureId = notification.getLectureId();
         this.lessonId = notification.getLessonId();
         this.url = notification.getUrl();
+        this.boardId = notification.getBoardId();
         this.createdAt = notification.getCreatedAt();
     }
 }
diff --git a/src/main/java/com/selfrunner/gwalit/domain/notification/repository/NotificationRepositoryImpl.java b/src/main/java/com/selfrunner/gwalit/domain/notification/repository/NotificationRepositoryImpl.java
index bd0f4025..cb96ad3c 100644
--- a/src/main/java/com/selfrunner/gwalit/domain/notification/repository/NotificationRepositoryImpl.java
+++ b/src/main/java/com/selfrunner/gwalit/domain/notification/repository/NotificationRepositoryImpl.java
@@ -24,7 +24,7 @@ public class NotificationRepositoryImpl implements NotificationRepositoryCustom
 
     @Override
     public Slice<NotificationRes> findNotificationPageableBy(Long cursor, LocalDateTime cursorCreatedAt, Pageable pageable, Long memberId) {
-        List<NotificationRes> content = queryFactory.select(Projections.constructor(NotificationRes.class, notification.notificationId, notification.memberId, notification.title, notification.body, notification.name, notification.lectureId, notification.lessonId, notification.url, notification.createdAt ))
+        List<NotificationRes> content = queryFactory.select(Projections.constructor(NotificationRes.class, notification.notificationId, notification.memberId, notification.title, notification.body, notification.name, notification.lectureId, notification.lessonId, notification.url, notification.boardId, notification.createdAt ))
                 .from(notification)
                 .leftJoin(memberAndNotification).on(memberAndNotification.notificationId.eq(notification.notificationId))
                 .where(notification.deletedAt.isNull().and(notification.memberId.isNull().or(memberAndNotification.memberId.eq(memberId))), eqCursorIdAndCursorCreatedAt(cursor, cursorCreatedAt))