diff --git a/lib/stdlib/sscanf.c b/lib/stdlib/sscanf.c
index 674ae79..a5876cf 100644
--- a/lib/stdlib/sscanf.c
+++ b/lib/stdlib/sscanf.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#include <stdio.h>
 #include <sys/cdefs.h>
 
 /*