diff --git a/src/winsyslog.c b/src/winsyslog.c
index f737cc28d1307e15a3c020f9dd7c6d7ba8fe2c38..66235b5b96dd3562bd15d0885162036b1cd66944 100644
--- a/src/winsyslog.c
+++ b/src/winsyslog.c
@@ -1,6 +1,13 @@
 /*
  * This header borrowed from Cygnus GNUwin32 project
  *
+ * Cygwin is free software.  Red Hat, Inc. licenses Cygwin to you under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License either version 3 of the license, or (at your
+ * option) any later version (GPLv3+), along with the additional permissions
+ * given below.
+ *
  * Modified for use with functions to map syslog
  * calls to EventLog calls on the windows platform
  *
diff --git a/src/winsyslog.h b/src/winsyslog.h
index 3696ff335e5c0638fe63a0a5415e21feec663491..e07f4bafb40bb82b9f153304d9da49e5a3a85352 100644
--- a/src/winsyslog.h
+++ b/src/winsyslog.h
@@ -1,6 +1,13 @@
 /*
  * This header borrowed from Cygnus GNUwin32 project
  *
+ * Cygwin is free software.  Red Hat, Inc. licenses Cygwin to you under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License either version 3 of the license, or (at your
+ * option) any later version (GPLv3+), along with the additional permissions
+ * given below.
+ *
  * Modified for use with functions to map syslog
  * calls to EventLog calls on the windows platform
  *