diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 1a508d9082..e15dcf806a 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -1584,7 +1584,7 @@ static SSDataBlock* readPreVersionData(SOperatorInfo* pTableScanOp, uint64_t tbU
 
   SSDataBlock* pBlock = pTableScanInfo->pResBlock;
   STsdbReader* pReader = NULL;
-  int32_t      code = pAPI->tsdReader.tsdReaderOpen(pTableScanInfo->base.readHandle.vnode, &cond, &tblInfo, 1, pBlock,
+  code = pAPI->tsdReader.tsdReaderOpen(pTableScanInfo->base.readHandle.vnode, &cond, &tblInfo, 1, pBlock,
                                                     (void**)&pReader, GET_TASKID(pTaskInfo), NULL);
   QUERY_CHECK_CODE(code, lino, _end);