diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 6e57237..d5383a1 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -460,3 +460,6 @@
 # SCR_EL3.TWEDEL(4bit) field, when FEAT_TWED is implemented.
 # By default it takes 0, and need to be updated by the platforms.
 TWED_DELAY			:= 0
+
+# By default, disable the mocking of RSS provided services
+PLAT_RSS_NOT_SUPPORTED		:= 0