diff --git a/tests/examples/c/prepare.c b/tests/examples/c/prepare.c
index b063d502fc..3b968aca07 100644
--- a/tests/examples/c/prepare.c
+++ b/tests/examples/c/prepare.c
@@ -4,8 +4,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-
-// # #include "taos.h"  // TAOS header file
 #include "taos.h"