diff --git a/rk3399pro/BoardConfig_rk3399pro_combine.mk b/rk3399pro/BoardConfig_rk3399pro_combine.mk
index 45d99b0..fd916a6 100755
--- a/rk3399pro/BoardConfig_rk3399pro_combine.mk
+++ b/rk3399pro/BoardConfig_rk3399pro_combine.mk
@@ -15,7 +15,7 @@ export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
 # parameter for GPT table
 export RK_PARAMETER=parameter.txt
 # Buildroot config
-export RK_CFG_BUILDROOT=rockchip_rk3399pro-combine
+export RK_CFG_BUILDROOT=rockchip_rk3399pro_combine
 # Recovery config
 export RK_CFG_RECOVERY=rockchip_rk3399pro_recovery
 # ramboot config