diff --git a/src/storage/blocksstable/ob_table_flag.h b/src/storage/blocksstable/ob_table_flag.h
index 03aa21c3b..e69f4f583 100644
--- a/src/storage/blocksstable/ob_table_flag.h
+++ b/src/storage/blocksstable/ob_table_flag.h
@@ -83,9 +83,9 @@ struct ObTableBackupFlag final
   union {
     int32_t flag_;
     struct {
-      ObTableHasBackupFlag::FLAG has_backup_flag_ : SF_BIT_HAS_BACKUP;
-      ObTableHasLocalFlag::FLAG has_local_flag_   : SF_BIT_HAS_LOCAL;
-      int64_t reserved_: SF_BIT_RESERVED;
+      uint32_t has_backup_flag_ : SF_BIT_HAS_BACKUP;
+      uint32_t has_local_flag_  : SF_BIT_HAS_LOCAL;
+      uint32_t reserved_: SF_BIT_RESERVED;
     };
   };
 };