diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable.c b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
index 4e6ec617ad73b6a0462a6763326012475aaaa973..007ae871a0e20d84d729f2d8123c0e7500591423 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
@@ -695,7 +695,7 @@ static int32_t tsdbInsertRowDataToTable(SMemTable *pMemTable, STbData *pTbData,
     }
 
     while (iRow < nRow) {
-      tRow.pTSRow = aRow[iRow++];
+      tRow.pTSRow = aRow[iRow];
       key.ts = tRow.pTSRow->ts;
 
       if (SL_NODE_FORWARD(pos[0], 0) != pTbData->sl.pTail) {