diff --git a/OOMAnalyser.html b/OOMAnalyser.html
index f078268..0dba676 100644
--- a/OOMAnalyser.html
+++ b/OOMAnalyser.html
@@ -1,4 +1,11 @@
 <!DOCTYPE html>
+<!--
+HTML for OOMAnalyser
+
+Copyright (c) 2017-2021 Carsten Grohmann
+License: MIT (see LICENSE.txt)
+THIS PROGRAM COMES WITH NO WARRANTY
+-->
 <html lang="en">
 <head>
     <script defer="defer" src="OOMAnalyser.js"></script>
diff --git a/rollup.config.js b/rollup.config.js
index 916b5d8..3d730ef 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -9,6 +9,11 @@ export default {
     output: {
         file: 'OOMAnalyser.js',
         name: 'OOMAnalyser',
+        banner: '// JavaScript for OOMAnalyser\n' +
+            '//\n' +
+            '// Copyright (c) 2017-2021 Carsten Grohmann\n' +
+            '// License: MIT (see LICENSE.txt)\n' +
+            '// THIS PROGRAM COMES WITH NO WARRANTY',
         format: 'umd'
     }
 };
\ No newline at end of file
