diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 53832c5..4af1da6 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -139,6 +139,9 @@
 # Set the default algorithm for the generation of Trusted Board Boot keys
 KEY_ALG				:= rsa
 
+# Option to build TF with Measured Boot support
+MEASURED_BOOT			:= 0
+
 # NS timer register save and restore
 NS_TIMER_SWITCH			:= 0