diff --git a/src/index.ts b/src/index.ts
index 7f205343..f933174c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,6 @@
+// Copyright 2023, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
 import * as mobx from "mobx";
 import * as React from "react";
 import { createRoot } from "react-dom/client";