diff --git a/src/apps/sntp/sntp.c b/src/apps/sntp/sntp.c
index 263996a3..a2f40a31 100644
--- a/src/apps/sntp/sntp.c
+++ b/src/apps/sntp/sntp.c
@@ -15,7 +15,7 @@
  */
 
 /*
- * Copyright (c) 2007-2009 Fr�d�ric Bernon, Simon Goldschmidt
+ * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -42,7 +42,7 @@
  *
  * This file is part of the lwIP TCP/IP stack.
  *
- * Author: Fr�d�ric Bernon, Simon Goldschmidt
+ * Author: Frédéric Bernon, Simon Goldschmidt
  */
 
 #include "lwip/apps/sntp.h"
diff --git a/src/include/lwip/apps/sntp.h b/src/include/lwip/apps/sntp.h
index 78999475..0dcc5578 100644
--- a/src/include/lwip/apps/sntp.h
+++ b/src/include/lwip/apps/sntp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2009 Fr�d�ric Bernon, Simon Goldschmidt
+ * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -26,7 +26,7 @@
  *
  * This file is part of the lwIP TCP/IP stack.
  *
- * Author: Fr�d�ric Bernon, Simon Goldschmidt
+ * Author: Frédéric Bernon, Simon Goldschmidt
  *
  */
 #ifndef LWIP_HDR_APPS_SNTP_H
diff --git a/src/include/lwip/apps/sntp_opts.h b/src/include/lwip/apps/sntp_opts.h
index 96773c86..7eafb230 100644
--- a/src/include/lwip/apps/sntp_opts.h
+++ b/src/include/lwip/apps/sntp_opts.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2009 Fr�d�ric Bernon, Simon Goldschmidt
+ * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -26,7 +26,7 @@
  *
  * This file is part of the lwIP TCP/IP stack.
  *
- * Author: Fr�d�ric Bernon, Simon Goldschmidt
+ * Author: Frédéric Bernon, Simon Goldschmidt
  *
  */
 #ifndef LWIP_HDR_APPS_SNTP_OPTS_H