diff --git a/board/freescale/imx8mm_evk/spl.c b/board/freescale/imx8mm_evk/spl.c
index e0e97c7fd9..b5a2faf3a1 100644
--- a/board/freescale/imx8mm_evk/spl.c
+++ b/board/freescale/imx8mm_evk/spl.c
@@ -33,6 +33,8 @@ DECLARE_GLOBAL_DATA_PTR;
 int spl_board_boot_device(enum boot_device boot_dev_spl)
 {
 	switch (boot_dev_spl) {
+	case USB_BOOT:
+		return BOOT_DEVICE_BOARD;
 	case SD2_BOOT:
 	case MMC2_BOOT:
 		return BOOT_DEVICE_MMC1;