diff --git a/.github/release.yml b/.github/release.yml
index ff23f4c..232ad17 100644
--- a/.github/release.yml
+++ b/.github/release.yml
@@ -1,3 +1,6 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 changelog:
   categories:
     - title: NOTES
diff --git a/builder/main.go b/builder/main.go
index 65e3691..3c3020e 100644
--- a/builder/main.go
+++ b/builder/main.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package main
 
 import (
diff --git a/src/_main.yml b/src/_main.yml
index a514d42..fd2bd61 100644
--- a/src/_main.yml
+++ b/src/_main.yml
@@ -1,3 +1,6 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 patterns:
   - include: "#comments"
   - include: "#attribute_definition"
diff --git a/src/hcl.yml b/src/hcl.yml
index bb67716..c72fb53 100644
--- a/src/hcl.yml
+++ b/src/hcl.yml
@@ -1,3 +1,6 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 scopeName: source.hcl
 name: HashiCorp HCL
 uuid: a14187be-98d8-42c1-ac89-bb5eaccf911e
diff --git a/src/terraform.yml b/src/terraform.yml
index af89ad0..7556c8c 100644
--- a/src/terraform.yml
+++ b/src/terraform.yml
@@ -1,3 +1,6 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 scopeName: source.hcl.terraform
 name: HashiCorp Terraform
 uuid: d9db10d3-db70-48aa-8d44-f96ccbaa29f3
diff --git a/tools/graph.ts b/tools/graph.ts
index 1b61fbc..52db138 100644
--- a/tools/graph.ts
+++ b/tools/graph.ts
@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: MPL-2.0
+ */
+
 interface Entry {
   patterns?: {
     include?: string;