diff --git a/pkg/apis/compute/backup.go b/pkg/apis/compute/backup.go
index b4984d53a7..624fa269b6 100644
--- a/pkg/apis/compute/backup.go
+++ b/pkg/apis/compute/backup.go
@@ -117,6 +117,8 @@ type DiskBackupDetails struct {
 	BackupStorageName string `json:"backup_storage_name"`
 	// description: 是否是子备份
 	IsSubBackup bool `json:"is_sub_backup"`
+
+	SDiskBackup
 }
 
 type DiskBackupAsTarInput struct {