diff --git a/configs/atngw100mkii_defconfig b/configs/atngw100mkii_defconfig
index bfceedb..9c1ee73 100644
--- a/configs/atngw100mkii_defconfig
+++ b/configs/atngw100mkii_defconfig
@@ -1,4 +1,5 @@
 CONFIG_AVR32=y
+CONFIG_MMC=y
 CONFIG_TARGET_ATNGW100MKII=y
 CONFIG_BOOTDELAY=1
 CONFIG_SYS_PROMPT="U-Boot> "