diff --git a/Makefile b/Makefile
index 6e95e7d0d72f36ea2dc78727c6c138e686869b71..ff8179a385e59ef6f8a485934f7d50bdfb7d59a5 100755
--- a/Makefile
+++ b/Makefile
@@ -95,7 +95,7 @@ TARGET_FILES+=$(HAL_PATH)/src/stm32f1xx_hal.c
 
 TARGET_FILES+=$(USART_PATH)/src/usart3.c
 TARGET_FILES+=$(USART_PATH)/src/usart2.c
-TARGET_FILES+=$(USART_PATH)/src/usart1.c
+TARGET_FILES+=$(USART_PATH)/src/usart1_remap.c
 
 DARWIN_OBJS_TMP = $(notdir $(TARGET_FILES:.c=.o))
 DARWIN_OBJS = $(patsubst %,$(BUILD_PATH)/%,$(DARWIN_OBJS_TMP))