diff --git a/plat/arm/common/trp/arm_trp.mk b/plat/arm/common/trp/arm_trp.mk
index 997111f..204c14a 100644
--- a/plat/arm/common/trp/arm_trp.mk
+++ b/plat/arm/common/trp/arm_trp.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+# Copyright (c) 2021-2022, Arm Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -8,3 +8,5 @@
 RMM_SOURCES		+=	plat/arm/common/trp/arm_trp_setup.c	\
 				plat/arm/common/arm_topology.c		\
 				plat/common/aarch64/platform_mp_stack.S
+
+INCLUDES		+=	-Iinclude/services/trp