diff --git a/docs/docs/CHANGELOG.md b/docs/docs/CHANGELOG.md
index 39407b4..a11650d 100644
--- a/docs/docs/CHANGELOG.md
+++ b/docs/docs/CHANGELOG.md
@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Verification page now shows hash rate and a progress bar for completion probability.
 - Added the `--debug-benchmark-js` flag for testing proof-of-work performance during development.
 - Use `TrimSuffix` instead of `TrimRight` on containerbuild
+- Add [LibreJS](https://www.gnu.org/software/librejs/) banner to Anubis JavaScript to allow LibreJS users to run the challenge
 
 ## v1.15.0
 
diff --git a/web/build.sh b/web/build.sh
index a513c59..dfe6266 100755
--- a/web/build.sh
+++ b/web/build.sh
@@ -4,7 +4,35 @@ set -euo pipefail
 
 cd "$(dirname "$0")"
 
-esbuild js/main.mjs --sourcemap --bundle --minify --outfile=static/js/main.mjs
+LICENSE='/*
+@licstart  The following is the entire license notice for the
+JavaScript code in this page.
+
+Copyright (c) 2025 Xe Iaso <me@xeiaso.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+@licend  The above is the entire license notice
+for the JavaScript code in this page.
+*/'
+
+esbuild js/main.mjs --sourcemap --bundle --minify --outfile=static/js/main.mjs "--banner:js=${LICENSE}"
 gzip -f -k static/js/main.mjs
 zstd -f -k --ultra -22 static/js/main.mjs
 brotli -fZk static/js/main.mjs