diff --git a/tests/examples/c/asyncdemo.c b/tests/examples/c/asyncdemo.c
index 16a14e96549c5cd66f747ae0c6c63f20c3e7fbfa..d711ce22c1e5a22b643bbbcb33468cd91713c861 100644
--- a/tests/examples/c/asyncdemo.c
+++ b/tests/examples/c/asyncdemo.c
@@ -163,6 +163,16 @@ int main(int argc, char *argv[])
 
   getchar();
 
+  while(1) {
+    if (tablesProcessed < numOfTables) {
+       printf("wait for process finished\n");
+       sleep(1);
+       continue;
+    }  
+
+    break;
+  }
+
   taos_close(taos);
   free(tableList);