diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile
index a356369..4bfc3d9 100644
--- a/drivers/ram/rockchip/Makefile
+++ b/drivers/ram/rockchip/Makefile
@@ -3,6 +3,7 @@
 # Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
 #
 
+obj-$(CONFIG_ROCKCHIP_PX30) += sdram_px30.o sdram_pctl_px30.o sdram_phy_px30.o
 obj-$(CONFIG_ROCKCHIP_RK3368) = dmc-rk3368.o
 obj-$(CONFIG_ROCKCHIP_RK3128) = sdram_rk3128.o
 obj-$(CONFIG_ROCKCHIP_RK3188) = sdram_rk3188.o