diff --git a/projects/Rockchip/devices/RK3399/linux/default/linux.aarch64.conf b/projects/Rockchip/devices/RK3399/linux/default/linux.aarch64.conf
index 2783c16647..384176837b 100644
--- a/projects/Rockchip/devices/RK3399/linux/default/linux.aarch64.conf
+++ b/projects/Rockchip/devices/RK3399/linux/default/linux.aarch64.conf
@@ -3242,7 +3242,7 @@ CONFIG_REGULATOR_GPIO=y
 # CONFIG_REGULATOR_MAX77826 is not set
 # CONFIG_REGULATOR_MCP16502 is not set
 # CONFIG_REGULATOR_MP5416 is not set
-# CONFIG_REGULATOR_MP8859 is not set
+CONFIG_REGULATOR_MP8859=y
 # CONFIG_REGULATOR_MP886X is not set
 # CONFIG_REGULATOR_MPQ7920 is not set
 # CONFIG_REGULATOR_MT6311 is not set