diff --git a/Backend/Controllers/DeviceManageController.cs b/Backend/Controllers/DeviceManageController.cs
index ceb04f3..0875c61 100644
--- a/Backend/Controllers/DeviceManageController.cs
+++ b/Backend/Controllers/DeviceManageController.cs
@@ -55,8 +55,8 @@ namespace Backend.Controllers
 	                            sv.system_priority AS sPriority
                             FROM building_menu bm 
                             LEFT JOIN building b ON bm.building_tag = b.building_tag AND b.deleted = 0
-                            LEFT JOIN variable mv ON bm.main_system_tag = mv.system_value AND mv.deleted = 0
-                            LEFT JOIN variable sv ON bm.sub_system_tag = sv.system_value AND sv.deleted = 0";
+                            LEFT JOIN variable mv ON bm.main_system_tag = mv.system_value AND mv.deleted = 0 and mv.system_type = '{main_system_type}'
+                            LEFT JOIN variable sv ON bm.sub_system_tag = sv.system_value AND sv.deleted = 0 and sv.system_type = '{sub_system_type}'";
 
                 if (!string.IsNullOrEmpty(filter))
                 {