diff --git a/server/router/api/v1/memo_service.go b/server/router/api/v1/memo_service.go
index 32a916bd..c20f7e22 100644
--- a/server/router/api/v1/memo_service.go
+++ b/server/router/api/v1/memo_service.go
@@ -135,7 +135,7 @@ func (s *APIV1Service) ListMemos(ctx context.Context, request *v1pb.ListMemosReq
 		memoFind.VisibilityList = []store.Visibility{store.Public}
 	} else {
 		if memoFind.CreatorID == nil {
-			internalFilter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "Protected"]`, currentUser.ID)
+			internalFilter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "PROTECTED"]`, currentUser.ID)
 			if memoFind.Filter != nil {
 				filter := fmt.Sprintf("(%s) && (%s)", *memoFind.Filter, internalFilter)
 				memoFind.Filter = &filter