diff --git a/packages/module-api/src/api/composer.ts b/packages/module-api/src/api/composer.ts
index 3acb931202..2ba4b90065 100644
--- a/packages/module-api/src/api/composer.ts
+++ b/packages/module-api/src/api/composer.ts
@@ -1,3 +1,10 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
 /**
  * API to alter the message composer.
  * @alpha Likely to change