diff --git a/ports/mimxrt/Makefile b/ports/mimxrt/Makefile
index ead206e5e2..d5bb7081b0 100644
--- a/ports/mimxrt/Makefile
+++ b/ports/mimxrt/Makefile
@@ -341,7 +341,7 @@ CFLAGS += \
 	-D__STARTUP_INITIALIZE_RAMFUNCTION \
 	-DBOARD_$(BOARD) \
 	-DBOARD_FLASH_SIZE=$(MICROPY_HW_FLASH_SIZE) \
-	-DCFG_TUSB_MCU=OPT_MCU_MIMXRT \
+	-DCFG_TUSB_MCU=OPT_MCU_MIMXRT1XXX \
 	-DCLOCK_CONFIG_H='<boards/$(MCU_SERIES)_clock_config.h>' \
 	-DCPU_$(MCU_SERIES)$(MCU_CORE) \
 	-DCPU_$(MCU_VARIANT) \