diff --git a/configs/mx6slevk_defconfig b/configs/mx6slevk_defconfig
index cd2fecc..b2773c38 100644
--- a/configs/mx6slevk_defconfig
+++ b/configs/mx6slevk_defconfig
@@ -34,6 +34,7 @@
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_DEV=1
 CONFIG_DM=y
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y