diff --git a/ports/stm32/Makefile b/ports/stm32/Makefile
index 24e12d669d..bb9a83d2c2 100644
--- a/ports/stm32/Makefile
+++ b/ports/stm32/Makefile
@@ -303,6 +303,7 @@ SRC_HAL = $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_,\
 	)
 
 ifeq ($(MCU_SERIES),$(filter $(MCU_SERIES),f4 f7 h7 l4))
+$(BUILD)/$(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_ll_usb.o: CFLAGS += -Wno-attributes
 SRC_HAL += $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_,\
 	hal_sd.c \
 	ll_sdmmc.c \