diff --git a/lcl/buttonpanel.pas b/lcl/buttonpanel.pas
index cfbafdec6c..bd65b91486 100644
--- a/lcl/buttonpanel.pas
+++ b/lcl/buttonpanel.pas
@@ -1,3 +1,17 @@
+{
+ *****************************************************************************
+ *                                                                           *
+ *  This file is part of the Lazarus Component Library (LCL)                 *
+ *                                                                           *
+ *  See the file COPYING.modifiedLGPL, included in this distribution,        *
+ *  for details about the copyright.                                         *
+ *                                                                           *
+ *  This program is distributed in the hope that it will be useful,          *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ *****************************************************************************
+}
 unit ButtonPanel;
 
 {$mode objfpc}{$h+}