diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 6b015cab087b1d89c017f6093fc5805d9b4a2195..7c98634330eac3fe6e3dec04f4b84c19b7c08215 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -4611,6 +4611,7 @@ static int64_t execInsert(threadInfo *pThreadInfo, char *buffer, int k)
     } else {
       errorPrint("%s() LN%d: unknown insert mode: %s\n",
         __func__, __LINE__, superTblInfo->insertMode);
+      affectedRows = 0;
     }
   } else {
     affectedRows = queryDbExec(pThreadInfo->taos, buffer, INSERT_TYPE, false);