diff --git a/bl32/tsp/tsp_private.h b/bl32/tsp/tsp_private.h
index b11570c..4a7acaa 100644
--- a/bl32/tsp/tsp_private.h
+++ b/bl32/tsp/tsp_private.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -62,7 +62,7 @@
 
 void tsp_get_magic(uint64_t args[4]);
 
-tsp_args_t *tsp_cpu_resume_main(uint64_t arg0,
+tsp_args_t *tsp_cpu_resume_main(uint64_t max_off_pwrlvl,
 				uint64_t arg1,
 				uint64_t arg2,
 				uint64_t arg3,