diff --git a/configs/firefly-rk3399_defconfig b/configs/firefly-rk3399_defconfig
index c3894fb..2ca99ad 100644
--- a/configs/firefly-rk3399_defconfig
+++ b/configs/firefly-rk3399_defconfig
@@ -7,8 +7,8 @@
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_DEBUG_UART_BASE=0xFF1A0000
 CONFIG_DEBUG_UART_CLOCK=24000000
-CONFIG_DEBUG_UART=y
 CONFIG_DEFAULT_DEVICE_TREE="rk3399-firefly"
+CONFIG_DEBUG_UART=y
 CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-firefly.dtb"
 CONFIG_MISC_INIT_R=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y