diff --git a/include/lib/runtime_instr.h b/include/lib/runtime_instr.h
index b2f1a69..ed564e2 100644
--- a/include/lib/runtime_instr.h
+++ b/include/lib/runtime_instr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,13 +7,15 @@
 #ifndef __RUNTIME_INSTR_H__
 #define __RUNTIME_INSTR_H__
 
-#define RT_INSTR_ENTER_PSCI		0
-#define RT_INSTR_EXIT_PSCI		1
-#define RT_INSTR_ENTER_HW_LOW_PWR	2
-#define RT_INSTR_EXIT_HW_LOW_PWR	3
-#define RT_INSTR_ENTER_CFLUSH		4
-#define RT_INSTR_EXIT_CFLUSH		5
-#define RT_INSTR_TOTAL_IDS		6
+#include <utils_def.h>
+
+#define RT_INSTR_ENTER_PSCI		U(0)
+#define RT_INSTR_EXIT_PSCI		U(1)
+#define RT_INSTR_ENTER_HW_LOW_PWR	U(2)
+#define RT_INSTR_EXIT_HW_LOW_PWR	U(3)
+#define RT_INSTR_ENTER_CFLUSH		U(4)
+#define RT_INSTR_EXIT_CFLUSH		U(5)
+#define RT_INSTR_TOTAL_IDS		U(6)
 
 #ifndef __ASSEMBLY__
 PMF_DECLARE_CAPTURE_TIMESTAMP(rt_instr_svc)