diff --git a/plinth/modules/xmpp/templates/jsxc.html b/plinth/modules/xmpp/templates/jsxc.html
index 2d9b5392f..93c3404e2 100644
--- a/plinth/modules/xmpp/templates/jsxc.html
+++ b/plinth/modules/xmpp/templates/jsxc.html
@@ -70,10 +70,12 @@
     <script src="/javascript/jsxc/jsxc.js"></script>
 
     <script lang="text/javascript">
+    // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL v3.0 or later
       var plinth_settings = {
           "domainname": "{{ domainname }}",
           "jsxc_root": "{% static 'xmpp/libjs-jsxc' %}"
       };
+    // @license-end
     </script>
     <script src="{% static 'xmpp/jsxc-plinth.js' %}"></script>
   </head>