diff --git a/hw/bsp/stm32f0/boards/stm32f042passkey/board.mk b/hw/bsp/stm32f0/boards/stm32f042passkey/board.mk
index 8c30d4e5f..34a95d338 100644
--- a/hw/bsp/stm32f0/boards/stm32f042passkey/board.mk
+++ b/hw/bsp/stm32f0/boards/stm32f042passkey/board.mk
@@ -23,3 +23,6 @@ flash: $(BUILD)/$(PROJECT).elf
 
 debug: $(BUILD)/$(PROJECT).elf
 	$(GDB) --eval-command='target remote | $(OOCD) --file interface/$(OOCD_INTERFACE).cfg --command "transport select swd" --file target/$(OOCD_TARGET).cfg --command "gdb_port pipe; log_output /dev/null; init"' $<
+
+dfu: $(BUILD)/$(PROJECT).bin
+	dfu-util --device 0483:df11 --cfg 1 --intf 0 --alt 0 --detach --dfuse-address 0x08000000 --download $<