diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 24a614800e..f1a1ee1a4b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -4349,6 +4349,10 @@ int32_t tsdbGetFileBlocksDistInfo(STsdbReader* pReader, STableBlockDistInfo* pTa
         pTableBlockInfo->numOfSmallBlocks += 1;
       }
 
+      for (int32_t i = 0; i < pBlock->nSubBlock; i++) {
+        pTableBlockInfo->totalSize += pBlock->aSubBlock[i].szBlock;
+      }
+
       int32_t bucketIndex = getBucketIndex(pTableBlockInfo->defMinRows, bucketRange, numOfRows);
       pTableBlockInfo->blockRowsHisto[bucketIndex]++;