diff --git a/plat/arm/common/arm_tzc400.c b/plat/arm/common/arm_tzc400.c
index 1d61c57..e19ca67 100644
--- a/plat/arm/common/arm_tzc400.c
+++ b/plat/arm/common/arm_tzc400.c
@@ -40,7 +40,7 @@
 
 	/* Region 1 set to cover Secure part of DRAM */
 	tzc400_configure_region(PLAT_ARM_TZC_FILTERS, 1,
-			ARM_AP_TZC_DRAM1_BASE, ARM_AP_TZC_DRAM1_END,
+			ARM_AP_TZC_DRAM1_BASE, ARM_EL3_TZC_DRAM1_END,
 			TZC_REGION_S_RDWR,
 			0);