diff --git a/configs/roc-pc-rk3399_defconfig b/configs/roc-pc-rk3399_defconfig
index ffd809687b..84e72e8b60 100644
--- a/configs/roc-pc-rk3399_defconfig
+++ b/configs/roc-pc-rk3399_defconfig
@@ -67,6 +67,8 @@ CONFIG_PWM_ROCKCHIP=y
 # CONFIG_RAM_ROCKCHIP_DEBUG is not set
 CONFIG_RAM_RK3399_LPDDR4=y
 CONFIG_DM_RESET=y
+CONFIG_DM_RNG=y
+CONFIG_RNG_ROCKCHIP=y
 CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_ROCKCHIP_SPI=y