diff --git a/trytond/CHANGELOG b/trytond/CHANGELOG
index a051ed631f..4f731134a3 100644
--- a/trytond/CHANGELOG
+++ b/trytond/CHANGELOG
@@ -1,3 +1,4 @@
+* Allow configuring TinyMCE license key
 * Add tools to apply types to SQLite select queries
 * Compress RPC responses
 * Change _changed_values and _save_values properties to method
diff --git a/trytond/doc/topics/configuration.rst b/trytond/doc/topics/configuration.rst
index 6ffb7d020c..f88ffc68eb 100644
--- a/trytond/doc/topics/configuration.rst
+++ b/trytond/doc/topics/configuration.rst
@@ -828,6 +828,15 @@ The URL pointing to `TinyMCE <https://www.tiny.cloud/>`_ editor.
 
 Default: ``https://cloud.tinymce.com/stable/tinymce.min.js``
 
+.. _config-html.license_key:
+
+license_key
+~~~~~~~~~~~
+
+The license key for TinyMCE.
+
+Default: ``gpl``
+
 .. _config-html.plugins:
 
 plugins
diff --git a/trytond/trytond/ir/routes.py b/trytond/trytond/ir/routes.py
index 4f596b4868..d2957e7006 100644
--- a/trytond/trytond/ir/routes.py
+++ b/trytond/trytond/ir/routes.py
@@ -18,6 +18,7 @@ from trytond.wsgi import app
 SOURCE = config.get(
     'html', 'src',
     default='https://cdn.tiny.cloud/1/no-api-key/tinymce/7/tinymce.min.js')
+LICENSE_KEY = config.get('html', 'license_key', default='gpl')
 AVATAR_TIMEOUT = config.getint(
     'web', 'avatar_timeout', default=7 * 24 * 60 * 60)
 _request_timeout = config.getint('request', 'timeout', default=0)
@@ -86,6 +87,7 @@ def html_editor(request, pool, model, record, field):
 
         return Response(TEMPLATE % {
                 'source': SOURCE,
+                'license_key': LICENSE_KEY,
                 'plugins': get_config(
                     ['plugins', model, field.name], default=''),
                 'css': get_config(
@@ -108,6 +110,7 @@ TEMPLATE = '''<!DOCTYPE html>
     <script>
     tinymce.init({
         selector: '#text',
+        license_key: '%(license_key)s',
         language: '%(language)s',
         plugins: 'autosave code %(plugins)s',
         removed_menuitems: 'newdocument',