diff --git a/configs/atngw100_defconfig b/configs/atngw100_defconfig
index 52dbefd..be48af1 100644
--- a/configs/atngw100_defconfig
+++ b/configs/atngw100_defconfig
@@ -1,4 +1,5 @@
 CONFIG_AVR32=y
+CONFIG_MMC=y
 CONFIG_TARGET_ATNGW100=y
 CONFIG_BOOTDELAY=1
 CONFIG_SYS_PROMPT="U-Boot> "