diff --git a/packages/element-web-module-api/src/models/event.ts b/packages/element-web-module-api/src/models/event.ts
index 54c787362a..709fb9e18c 100644
--- a/packages/element-web-module-api/src/models/event.ts
+++ b/packages/element-web-module-api/src/models/event.ts
@@ -1,3 +1,10 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
 /**
  * Representation of a Matrix event.
  * @beta