diff --git a/plat/rockchip/rk3399/platform.mk b/plat/rockchip/rk3399/platform.mk
index bc89a82..1d53804 100644
--- a/plat/rockchip/rk3399/platform.mk
+++ b/plat/rockchip/rk3399/platform.mk
@@ -80,6 +80,7 @@
 				${RK_PLAT_SOC}/drivers/pwm/pwm.c	\
                                 ${RK_PLAT_SOC}/drivers/soc/soc.c		\
 				${RK_PLAT_SOC}/drivers/dram/dfs.c		\
+                                ${RK_PLAT_SOC}/drivers/dram/suspend.c           \
 				${RK_PLAT_SOC}/drivers/dram/dram.c		\
 				${RK_PLAT_SOC}/drivers/dram/dram_spec_timing.c