diff --git a/bsp/cvitek/c906_little/board/board.c b/bsp/cvitek/c906_little/board/board.c
index 8bcc041802..414d2663ff 100755
--- a/bsp/cvitek/c906_little/board/board.c
+++ b/bsp/cvitek/c906_little/board/board.c
@@ -11,6 +11,8 @@
 #include <rtthread.h>
 
 #include "board.h"
+#include "tick.h"
+#include "drv_uart.h"
 
 void rt_hw_board_init(void)
 {
diff --git a/bsp/cvitek/c906_little/board/tick.h b/bsp/cvitek/c906_little/board/tick.h
index 7e0d0add4c..7c5ca9dd1f 100755
--- a/bsp/cvitek/c906_little/board/tick.h
+++ b/bsp/cvitek/c906_little/board/tick.h
@@ -11,8 +11,6 @@
 #ifndef __TICK_H__
 #define __TICK_H__
 
-
-int tick_isr(void);
 int rt_hw_tick_init(void);
 
 #endif /* __TICK_H__ */