--- a/modbus/mb_runtime.c	Wed May 23 20:22:45 2018 +0200
+++ b/modbus/mb_runtime.c	Mon Jun 11 08:34:15 2018 +0200
@@ -7,7 +7,7 @@
  *
  * This Modbus library is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
+ * 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