diff --git a/bsp/ls1bdev/drivers/board.c b/bsp/ls1bdev/drivers/board.c
index e25c6267d5f2623dcdddc30d955a30a4d4759d6d..a3f907f664973e4565cc6327fd3341ea13e96907 100644
--- a/bsp/ls1bdev/drivers/board.c
+++ b/bsp/ls1bdev/drivers/board.c
@@ -16,6 +16,7 @@
 
 #include <rtthread.h>
 #include <rthw.h>
+#include <mips_fpu.h>
 
 #include "board.h"
 #include "uart.h"