diff --git a/include/lib/extensions/spe.h b/include/lib/extensions/spe.h
index 8a74127..b2b188e 100644
--- a/include/lib/extensions/spe.h
+++ b/include/lib/extensions/spe.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,6 +7,7 @@
 #ifndef __SPE_H__
 #define __SPE_H__
 
+int spe_supported(void);
 void spe_enable(int el2_unused);
 void spe_disable(void);