diff --git a/packages/docusaurus-plugin-content-blog/types.d.ts b/packages/docusaurus-plugin-content-blog/types.d.ts
index dc654ad7c9727..c0c9f3a8ec03e 100644
--- a/packages/docusaurus-plugin-content-blog/types.d.ts
+++ b/packages/docusaurus-plugin-content-blog/types.d.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 declare module 'remark-admonitions' {
   type Options = any;
 
diff --git a/packages/docusaurus-plugin-content-docs/types.d.ts b/packages/docusaurus-plugin-content-docs/types.d.ts
index dc654ad7c9727..c0c9f3a8ec03e 100644
--- a/packages/docusaurus-plugin-content-docs/types.d.ts
+++ b/packages/docusaurus-plugin-content-docs/types.d.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 declare module 'remark-admonitions' {
   type Options = any;