diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 9a5aedcdb79b705a9be72c13afa860fb4f5a8506..e4f656eb2e3dac4d1c28263b29cc99eb409e2096 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -857,7 +857,6 @@ void multiThreadCreateTable(char* cols, bool use_metric, int threads, int ntable
 
   for (int i = 0; i < threads; i++) {
     info *t_info = infos + i;
-    taos_close(t_info->taos);
     sem_destroy(&(t_info->mutex_sem));
     sem_destroy(&(t_info->lock_sem));
   }