diff --git a/rt-thread-version/rt-thread-standard/programming-manual/device/can/can.md b/rt-thread-version/rt-thread-standard/programming-manual/device/can/can.md
index 0db30bee5cbe82af085df0bcfdf9b9cdbe2506da..90e87e2cd8840fbc0ce32238699189505ae63271 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/device/can/can.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/device/can/can.md
@@ -515,11 +515,11 @@ static void can_rx_thread(void *parameter)
 #ifdef RT_CAN_USING_HDR
     struct rt_can_filter_item items[5] =
     {
-        RT_CAN_FILTER_ITEM_INIT(0x100, 0, 0, 1, 0x700, RT_NULL, RT_NULL), /* std,match ID:0x100~0x1ff，hdr 为 - 1，设置默认过滤表 */
-        RT_CAN_FILTER_ITEM_INIT(0x300, 0, 0, 1, 0x700, RT_NULL, RT_NULL), /* std,match ID:0x300~0x3ff，hdr 为 - 1 */
-        RT_CAN_FILTER_ITEM_INIT(0x211, 0, 0, 1, 0x7ff, RT_NULL, RT_NULL), /* std,match ID:0x211，hdr 为 - 1 */
+        RT_CAN_FILTER_ITEM_INIT(0x100, 0, 0, 0, 0x700, RT_NULL, RT_NULL), /* std,match ID:0x100~0x1ff，hdr 为 - 1，设置默认过滤表 */
+        RT_CAN_FILTER_ITEM_INIT(0x300, 0, 0, 0, 0x700, RT_NULL, RT_NULL), /* std,match ID:0x300~0x3ff，hdr 为 - 1 */
+        RT_CAN_FILTER_ITEM_INIT(0x211, 0, 0, 0, 0x7ff, RT_NULL, RT_NULL), /* std,match ID:0x211，hdr 为 - 1 */
         RT_CAN_FILTER_STD_INIT(0x486, RT_NULL, RT_NULL),                  /* std,match ID:0x486，hdr 为 - 1 */
-        {0x555, 0, 0, 1, 0x7ff, 7,}                                       /* std,match ID:0x555，hdr 为 7，指定设置 7 号过滤表 */
+        {0x555, 0, 0, 0, 0x7ff, 7,}                                       /* std,match ID:0x555，hdr 为 7，指定设置 7 号过滤表 */
     };
     struct rt_can_filter_config cfg = {5, 1, items}; /* 一共有 5 个过滤表 */
     /* 设置硬件过滤表 */