diff --git a/src/storage/blocksstable/ob_tmp_file.h b/src/storage/blocksstable/ob_tmp_file.h
index 9d7bc6501008266f89c9703d7fd6b7b4a1ce8835..a5a0c939f3f7c828e5077bfbca638bdb0706acd9 100644
--- a/src/storage/blocksstable/ob_tmp_file.h
+++ b/src/storage/blocksstable/ob_tmp_file.h
@@ -184,7 +184,7 @@ public:
   {
     block_id_ = block_id;
   }
-  OB_INLINE int32_t get_block_id() const
+  OB_INLINE int64_t get_block_id() const
   {
     return block_id_;
   }