diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index d43d78d..5389885 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -149,7 +149,9 @@
 CONFIG_PWRSEQ=y
 CONFIG_SPL_PWRSEQ=y
 CONFIG_I2C_EEPROM=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SANDBOX=y
+CONFIG_MMC_SDHCI=y
 CONFIG_MTD=y
 CONFIG_SPI_FLASH_SANDBOX=y
 CONFIG_SPI_FLASH_ATMEL=y