diff --git a/addons/html_builder/__manifest__.py b/addons/html_builder/__manifest__.py
index 461ab2f04e558..3a1632c569f09 100644
--- a/addons/html_builder/__manifest__.py
+++ b/addons/html_builder/__manifest__.py
@@ -63,4 +63,5 @@
             ('include', 'website.assets_builder'),
         ],
     },
+    'license': 'LGPL-3',
 }