diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index 177b28a..1afbb92 100755
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -318,6 +318,7 @@ void UDiskSystemBackupProxy::doMksqushfs()
             // 开始备份
             doBackup();
         } else {
+            m_isFinished = true;
             emit checkResult(int(BackupResult::MKSQUASHFS_DO_FAIL));
         }
     });