diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index 6f093f4..3b605f4 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-firefly"
 CONFIG_DEBUG_UART=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SILENT_CONSOLE=y
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_SPL_STACK_R=y