diff --git a/sap/server.c b/sap/server.c
index 2728778..64af3f9 100644
--- a/sap/server.c
+++ b/sap/server.c
@@ -7,7 +7,8 @@
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of