diff --git a/configs/riotboard_defconfig b/configs/riotboard_defconfig
index 0284f86..4f86a08 100644
--- a/configs/riotboard_defconfig
+++ b/configs/riotboard_defconfig
@@ -42,6 +42,7 @@
 CONFIG_DM_GPIO=y
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_SUPPORT_EMMC_BOOT=y
+CONFIG_DM_MMC=y
 CONFIG_FSL_USDHC=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y