diff --git a/rt-thread-version/rt-thread-standard/programming-manual/device/pin/pin.md b/rt-thread-version/rt-thread-standard/programming-manual/device/pin/pin.md
index 52a65d22e446be66ca81a499ea7b3b5b30c49d1e..d3e54ee910d74a5c2a1517c4caab5af0d89ad7c6 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/device/pin/pin.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/device/pin/pin.md
@@ -53,6 +53,9 @@ GET_PIN(port, pin)
 获取引脚号为 PF9 的 LED0 对应的引脚编号的示例代码如下所示：
 
 ```c
+#include <rtdevice.h>
+#include <board.h>    //不包含，可能会遇到错误提示没有'F'定义
+
 #define LED0_PIN        GET_PIN(F,  9)
 ```