diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 65ba7d50fe12ed5065209a9f3cdbb687c04c9590..56aff9de6e1872a217cf35ab7a9de39a189df221 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -4685,8 +4685,13 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
          pThreadInfo->threadID, __func__, __LINE__);
 
   SSuperTable* superTblInfo = pThreadInfo->superTblInfo;
+
+  int64_t insertRows = (superTblInfo)?superTblInfo->insertRows:g_args.num_of_DPT;
   int interlaceRows = superTblInfo?superTblInfo->interlaceRows:g_args.interlace_rows;
 
+  if (interlaceRows > insertRows)
+    interlaceRows = insertRows;
+
   int insertMode;
 
   if (interlaceRows > 0) {
@@ -4713,7 +4718,6 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
 
   int nTimeStampStep = superTblInfo?superTblInfo->timeStampStep:DEFAULT_TIMESTAMP_STEP;
 
-  int64_t insertRows = (superTblInfo)?superTblInfo->insertRows:g_args.num_of_DPT;
   int insert_interval =
       superTblInfo?superTblInfo->insertInterval:g_args.insert_interval;
   uint64_t st = 0;