diff --git a/configs/r8a7796_ulcb_defconfig b/configs/r8a7796_ulcb_defconfig
index 62ec2a5..bc995de 100644
--- a/configs/r8a7796_ulcb_defconfig
+++ b/configs/r8a7796_ulcb_defconfig
@@ -18,6 +18,7 @@
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_OF_CONTROL=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_SH_SDHI=y