diff --git a/plat/rockchip/rk3399/drivers/pmu/pmu.c b/plat/rockchip/rk3399/drivers/pmu/pmu.c
index 07a5b1e..4ae766c 100644
--- a/plat/rockchip/rk3399/drivers/pmu/pmu.c
+++ b/plat/rockchip/rk3399/drivers/pmu/pmu.c
@@ -436,7 +436,7 @@
 void plat_rockchip_pmusram_prepare(void)
 {
 	uint32_t *sram_dst, *sram_src;
-	size_t sram_size = 2;
+	size_t sram_size;
 
 	/*
 	 * pmu sram code and data prepare