diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index ed4c898..3cd39ce 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -57,6 +57,10 @@
 $(error "Incorrect GIC driver chosen on FVP port")
 endif
 
+FVP_SECURITY_SOURCES	:=	drivers/arm/tzc400/tzc400.c		\
+				plat/arm/board/fvp/fvp_security.c	\
+				plat/arm/common/arm_tzc400.c
+
 PLAT_INCLUDES		:=	-Iplat/arm/board/fvp/include
 
 
@@ -85,19 +89,19 @@
 				plat/arm/board/fvp/fvp_bl2_setup.c		\
 				plat/arm/board/fvp/fvp_err.c			\
 				plat/arm/board/fvp/fvp_io_storage.c		\
-				plat/arm/board/fvp/fvp_security.c
+				${FVP_SECURITY_SOURCES}
 
 BL2U_SOURCES		+=	plat/arm/board/fvp/fvp_bl2u_setup.c		\
-				plat/arm/board/fvp/fvp_security.c
+				${FVP_SECURITY_SOURCES}
 
 BL31_SOURCES		+=	${FVP_CPU_LIBS}					\
 				plat/arm/board/fvp/fvp_bl31_setup.c		\
 				plat/arm/board/fvp/fvp_pm.c			\
-				plat/arm/board/fvp/fvp_security.c		\
 				plat/arm/board/fvp/fvp_topology.c		\
 				plat/arm/board/fvp/aarch64/fvp_helpers.S	\
 				plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.c	\
-				${FVP_GIC_SOURCES}
+				${FVP_GIC_SOURCES}				\
+				${FVP_SECURITY_SOURCES}
 
 # Disable the PSCI platform compatibility layer
 ENABLE_PLAT_COMPAT	:= 	0
diff --git a/plat/arm/board/juno/platform.mk b/plat/arm/board/juno/platform.mk
index fae30e7..77014a1 100644
--- a/plat/arm/board/juno/platform.mk
+++ b/plat/arm/board/juno/platform.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -34,6 +34,10 @@
 				plat/common/plat_gicv2.c		\
 				plat/arm/common/arm_gicv2.c
 
+JUNO_SECURITY_SOURCES	:=	drivers/arm/tzc400/tzc400.c		\
+				plat/arm/board/juno/juno_security.c	\
+				plat/arm/common/arm_tzc400.c
+
 PLAT_INCLUDES		:=	-Iplat/arm/board/juno/include
 
 PLAT_BL_COMMON_SOURCES	:=	plat/arm/board/juno/aarch64/juno_helpers.S
@@ -44,17 +48,17 @@
 				plat/arm/board/juno/juno_bl1_setup.c	\
 				plat/arm/board/juno/juno_err.c
 
-BL2_SOURCES		+=	plat/arm/board/juno/juno_security.c	\
-				plat/arm/board/juno/juno_err.c
+BL2_SOURCES		+=	plat/arm/board/juno/juno_err.c		\
+				${JUNO_SECURITY_SOURCES}
 
-BL2U_SOURCES		+=	plat/arm/board/juno/juno_security.c
+BL2U_SOURCES		+=	${JUNO_SECURITY_SOURCES}
 
 BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a53.S		\
 				lib/cpus/aarch64/cortex_a57.S		\
 				lib/cpus/aarch64/cortex_a72.S		\
 				plat/arm/board/juno/juno_pm.c		\
-				plat/arm/board/juno/juno_security.c	\
-				${JUNO_GIC_SOURCES}
+				${JUNO_GIC_SOURCES}			\
+				${JUNO_SECURITY_SOURCES}
 
 # Enable workarounds for selected Cortex-A57 erratas.
 ERRATA_A57_806969	:=	0
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 3202735..40ea1be 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -102,26 +102,20 @@
 BL1_SOURCES		+=	plat/arm/common/arm_pm.c
 endif
 
-BL2_SOURCES		+=	drivers/arm/tzc400/tzc400.c			\
-				drivers/io/io_fip.c				\
+BL2_SOURCES		+=	drivers/io/io_fip.c				\
 				drivers/io/io_memmap.c				\
 				drivers/io/io_storage.c				\
 				plat/arm/common/arm_bl2_setup.c			\
 				plat/arm/common/arm_io_storage.c		\
-				plat/arm/common/arm_security.c			\
 				plat/common/aarch64/platform_up_stack.S
 
-BL2U_SOURCES		+=	drivers/arm/tzc400/tzc400.c			\
-				plat/arm/common/arm_bl2u_setup.c		\
-				plat/arm/common/arm_security.c			\
+BL2U_SOURCES		+=	plat/arm/common/arm_bl2u_setup.c		\
 				plat/common/aarch64/platform_up_stack.S
 
 BL31_SOURCES		+=	drivers/arm/cci/cci.c				\
 				drivers/arm/ccn/ccn.c				\
-				drivers/arm/tzc400/tzc400.c			\
 				plat/arm/common/arm_bl31_setup.c		\
 				plat/arm/common/arm_pm.c			\
-				plat/arm/common/arm_security.c			\
 				plat/arm/common/arm_topology.c			\
 				plat/common/aarch64/platform_mp_stack.S		\
 				plat/common/aarch64/plat_psci_common.c
diff --git a/plat/arm/common/arm_security.c b/plat/arm/common/arm_tzc400.c
similarity index 100%
rename from plat/arm/common/arm_security.c
rename to plat/arm/common/arm_tzc400.c