diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index c83756ce01..84dcde06ac 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -2857,7 +2857,7 @@ static int32_t buildComposedDataBlock(STsdbReader* pReader) {
     // it is a clean block, load it directly
     if (isCleanFileDataBlock(pReader, pBlockInfo, pBlock, pBlockScanInfo, keyInBuf, pLastBlockReader) &&
         pBlock->nRow <= pReader->resBlockInfo.capacity) {
-      if (asc || (!hasDataInLastBlock(pLastBlockReader) && (!asc && (pBlock->maxKey.ts > keyInBuf.ts)))) {
+      if (asc || (!hasDataInLastBlock(pLastBlockReader) && (pBlock->maxKey.ts > keyInBuf.ts))) {
         code = copyBlockDataToSDataBlock(pReader);
         if (code) {
           goto _end;