diff --git a/data/License.h b/data/License.h
index a117ef92f1..d824a758d1 100644
--- a/data/License.h
+++ b/data/License.h
@@ -1,5 +1,23 @@
+/* Automatically generated file using generate_wxmathml.sh                              */
+/* This file is part of wxMaxima.                                                       */
+
+/* Copyright (C) 2020 wxMaxima Team (https://wxMaxima-developers.github.io/wxmaxima/)   */
+
+/* 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; 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                       */
+/* 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 this program; if not, write to the Free Software                          */
+/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA         */
 unsigned char License_gz[] = {
-  0x1f, 0x8b, 0x08, 0x08, 0x6c, 0x33, 0x46, 0x5e, 0x00, 0x03, 0x43, 0x4f,
+  0x1f, 0x8b, 0x08, 0x08, 0x05, 0xd1, 0x3f, 0x5e, 0x00, 0x03, 0x43, 0x4f,
   0x50, 0x59, 0x49, 0x4e, 0x47, 0x00, 0x9c, 0x5b, 0x5b, 0x7b, 0x1a, 0x49,
   0x92, 0x7d, 0xcf, 0x5f, 0x91, 0x9f, 0x5f, 0x5a, 0x9a, 0xc5, 0xf8, 0x32,
   0x3b, 0xbb, 0xd3, 0xed, 0x27, 0x24, 0x21, 0x9b, 0x1d, 0x09, 0xa9, 0x01,
diff --git a/data/generate_wxmathml.sh b/data/generate_wxmathml.sh
index cc15838e30..a185e1d92d 100755
--- a/data/generate_wxmathml.sh
+++ b/data/generate_wxmathml.sh
@@ -53,6 +53,6 @@ cat >License.h <<END
 END
 
 gzip -c ../COPYING > License.gz
-xxd -i "License.gz" > "License.h"
+xxd -i "License.gz" >> "License.h"
 rm -f License.gz
 
diff --git a/data/wxMathML.h b/data/wxMathML.h
index 7473ca1bfc..f98ce340f9 100644
--- a/data/wxMathML.h
+++ b/data/wxMathML.h
@@ -17,7 +17,7 @@
 /* along with this program; if not, write to the Free Software                          */
 /* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA         */
 unsigned char wxMathML_lisp_gz[] = {
-  0x1f, 0x8b, 0x08, 0x08, 0x68, 0xfb, 0x48, 0x5e, 0x00, 0x03, 0x77, 0x78,
+  0x1f, 0x8b, 0x08, 0x08, 0x34, 0xfe, 0x48, 0x5e, 0x00, 0x03, 0x77, 0x78,
   0x4d, 0x61, 0x74, 0x68, 0x4d, 0x4c, 0x2e, 0x6c, 0x69, 0x73, 0x70, 0x00,
   0xcc, 0x3c, 0x69, 0x73, 0xdb, 0x46, 0x96, 0x9f, 0xe5, 0x5f, 0xd1, 0x45,
   0xc9, 0x21, 0x28, 0x13, 0xba, 0x92, 0xda, 0xcd, 0xca, 0x8e, 0x52, 0x9e,