diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 6422397..819abcd 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -87,6 +87,9 @@
 # Flag to enable exception handling in EL3
 EL3_EXCEPTION_HANDLING		:= 0
 
+# Flag to enable Pointer Authentication
+ENABLE_PAUTH			:= 0
+
 # Build flag to treat usage of deprecated platform and framework APIs as error.
 ERROR_DEPRECATED		:= 0