diff --git a/configs/apx4devkit_defconfig b/configs/apx4devkit_defconfig
index 9245ebb..53d03e1 100644
--- a/configs/apx4devkit_defconfig
+++ b/configs/apx4devkit_defconfig
@@ -22,6 +22,7 @@
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_UBI=y
+CONFIG_MMC_MXS=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y