diff --git a/configs/khadas-edge-rk3399_defconfig b/configs/khadas-edge-rk3399_defconfig
index 7518f7f..f74963c 100644
--- a/configs/khadas-edge-rk3399_defconfig
+++ b/configs/khadas-edge-rk3399_defconfig
@@ -52,7 +52,7 @@
 CONFIG_REGULATOR_PWM=y
 CONFIG_REGULATOR_RK8XX=y
 CONFIG_PWM_ROCKCHIP=y
-CONFIG_RAM_RK3399_LPDDR4=y
+CONFIG_RAM_ROCKCHIP_LPDDR4=y
 CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550_MEM32=y