diff --git a/include/lib/el3_runtime/aarch64/context.h b/include/lib/el3_runtime/aarch64/context.h
index 3490414..3135fb4 100644
--- a/include/lib/el3_runtime/aarch64/context.h
+++ b/include/lib/el3_runtime/aarch64/context.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -60,7 +60,8 @@
 #define CTX_SPSR_EL3		U(0x18)
 #define CTX_ELR_EL3		U(0x20)
 #define CTX_PMCR_EL0		U(0x28)
-#define CTX_EL3STATE_END	U(0x30)
+#define CTX_IS_IN_EL3		U(0x30)
+#define CTX_EL3STATE_END	U(0x40) /* Align to the next 16 byte boundary */
 
 /*******************************************************************************
  * Constants that allow assembler code to access members of and the