diff --git a/bsp/ls1cdev/drivers/uart.c b/bsp/ls1cdev/drivers/uart.c
index c5207b21d..01bb2d0f8 100644
--- a/bsp/ls1cdev/drivers/uart.c
+++ b/bsp/ls1cdev/drivers/uart.c
@@ -24,7 +24,7 @@
 
 /*@{*/
 
-#if defined(RT_USING_UART) && defined(RT_USING_DEVICE)
+#if defined(RT_USING_SERIAL) && defined(RT_USING_DEVICE)
 
 struct rt_uart_ls1c
 {