diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 0bba83622c86978872d7f0ae0350567b9d5547e1..a04100343ae3482f35addaf11ff9e267f2a933ee 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -2567,8 +2567,8 @@ static bool initLastBlockReader(SLastBlockReader* pLBlockReader, STableBlockScan
 }
 
 static int64_t getCurrentKeyInLastBlock(SLastBlockReader* pLastBlockReader) {
-  TSDBROW row = tMergeTreeGetRow(&pLastBlockReader->mergeTree);
-  return TSDBROW_TS(&row);
+  TSDBROW* pRow = &tMergeTreeGetRow((&(pLastBlockReader)->mergeTree));
+  return pRow->pBlockData->aTSKEY[pRow->iRow];
 }
 
 static bool hasDataInLastBlock(SLastBlockReader* pLastBlockReader) { return pLastBlockReader->mergeTree.pIter != NULL; }