diff --git a/bsp/stm32f10x/drivers/board.h b/bsp/stm32f10x/drivers/board.h
index ea55b782fa0712a75383e919b369bbf51e13d6ce..79360b2d2882672e4518d23c43c5113cbacac825 100644
--- a/bsp/stm32f10x/drivers/board.h
+++ b/bsp/stm32f10x/drivers/board.h
@@ -39,10 +39,6 @@
 
 // <<< Use Configuration Wizard in Context Menu >>>
 
-/* USART driver select. */
-#define RT_USING_UART1
-#define RT_USING_UART2
-#define RT_USING_UART3
 #define USING_BXCAN1
 
 void rt_hw_board_init(void);