diff --git a/flash/uart_boot/Makefile b/flash/uart_boot/Makefile
index f8f9487..04db068 100644
--- a/flash/uart_boot/Makefile
+++ b/flash/uart_boot/Makefile
@@ -14,3 +14,6 @@
 uart_boot: uart_boot.c client.c flash.c uart_win.c
 	$(CC) $(CFLAGS) $+ -o $@
 
+clean:
+	-rm -f uart_boot.exe
+