diff --git a/FrontendWebApi/ApiControllers/BuildController.cs b/FrontendWebApi/ApiControllers/BuildController.cs
index b52bcf7..d7dcebd 100644
--- a/FrontendWebApi/ApiControllers/BuildController.cs
+++ b/FrontendWebApi/ApiControllers/BuildController.cs
@@ -196,7 +196,7 @@ namespace FrontendWebApi.ApiControllers
                 where ap.AuthType = 1
                 ) shower on shower.building_tag = me.building_tag and shower.ShowView = v2.id
                 join building b on b.building_tag = me.building_tag and b.deleted = 0 and shower.building_tag = b.building_tag
-                where me.is_link = 1
+                where me.is_link > 0
                 order by b.priority, v1.system_priority, me.priority, v2.system_priority, v2.created_at DESC", new { Account = account });
 
                 var floorsql = await backendRepository.GetAllAsync<Floorsql>(@"
diff --git a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
index cce94f4..e554cc8 100644
--- a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
+++ b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
@@ -702,7 +702,7 @@ namespace Repository.BackendRepository.Implement
                             ) AS a ON b.building_tag COLLATE utf8mb4_0900_ai_ci = a.device_building_tag COLLATE utf8mb4_0900_ai_ci
                             and a.device_system_tag COLLATE utf8mb4_0900_ai_ci = b.main_system_tag COLLATE utf8mb4_0900_ai_ci and a.device_name_tag COLLATE utf8mb4_0900_ai_ci = b.sub_system_tag COLLATE utf8mb4_0900_ai_ci
                             SET b.is_link = 0
-                            WHERE a.device_building_tag IS NULL");
+                            WHERE a.device_building_tag IS NULL and b.is_link < 2");
                     using (TransactionScope scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
                     {
                         await conn.ExecuteAsync(sb.ToString());