diff --git a/src/perl/make_parameter_source.pl b/src/perl/make_parameter_source.pl
--- a/src/perl/make_parameter_source.pl
+++ b/src/perl/make_parameter_source.pl
@@ -88,6 +88,27 @@ while (<parfile>) {
 $lines=$i;
 
 print cppfile <<END_HEADER;
+/*
+ *
+ *  This file is part of the Virtual Leaf.
+ *
+ *  VirtualLeaf 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, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  VirtualLeaf 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.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with the Virtual Leaf.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Copyright 2010 Roeland Merks.
+ *
+ */
+
 // WARNING: This file is automatically generated by make_parameter_source.pl.
 // Do not edit. All edits will be discarded.
 
@@ -108,6 +129,8 @@ print cppfile <<END_HEADER;
 
 using namespace std;
 
+static const std::string _module_id("\$Id\$");
+
 Parameter::Parameter() {
 END_HEADER
 
@@ -373,8 +396,31 @@ END_TRAILER
 
 open hfile, ">parameter.h";
 print hfile <<END_HEADER2;
+/*
+ *
+ *  \$Id\$
+ *
+ *  This file is part of the Virtual Leaf.
+ *
+ *  VirtualLeaf 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, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  VirtualLeaf 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.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with the Virtual Leaf.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Copyright 2010 Roeland Merks.
+ *
+ */
+
 // WARNING: This file is automatically generated by make_parameter_source.pl. Do not edit.
-// All edits will be discarded.
+// Do not edit. All edits will be discarded.
 
 #ifndef _PARAMETER_H_
 #define _PARAMETER_H_