diff --git a/configs/ls1021atwr_sdcard_qspi_defconfig b/configs/ls1021atwr_sdcard_qspi_defconfig
index 5ccfc96..9ab9e25 100644
--- a/configs/ls1021atwr_sdcard_qspi_defconfig
+++ b/configs/ls1021atwr_sdcard_qspi_defconfig
@@ -13,6 +13,7 @@
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,SD_BOOT,SD_BOOT_QSPI"
 CONFIG_SD_BOOT=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_BOOTDELAY=3
 CONFIG_SILENT_CONSOLE=y
 # CONFIG_CONSOLE_MUX is not set