diff --git a/pkg/lbagent/models/reflect.go b/pkg/lbagent/models/reflect.go
index 34af04a0f9..0d129638ea 100644
--- a/pkg/lbagent/models/reflect.go
+++ b/pkg/lbagent/models/reflect.go
@@ -90,7 +90,7 @@ func GetModels(opts *GetModelsOptions) error {
 		Details: options.Bool(true),
 		Filter: []string{
 			minUpdatedAtFilter(minUpdatedAt), // order matters, filter.0
-			"isempty(manager_id)",            // len(manager_id) > 0 is for pubcloud objects
+			"manager_id.isnull()",            // len(manager_id) > 0 is for pubcloud objects
 		},
 		OrderBy: []string{"updated_at", "id"},
 		Order:   "asc",