diff --git a/configs/mx6ull_14x14_evk_defconfig b/configs/mx6ull_14x14_evk_defconfig
index 5131213..e0440aa 100644
--- a/configs/mx6ull_14x14_evk_defconfig
+++ b/configs/mx6ull_14x14_evk_defconfig
@@ -31,6 +31,7 @@
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_DEV=1
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_DM_74X164=y
 CONFIG_DM_I2C=y