diff --git a/command.go b/command.go
index e7a1230..4eb4692 100644
--- a/command.go
+++ b/command.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import "github.com/hashicorp/cli"
diff --git a/command_test.go b/command_test.go
index 4807624..0149650 100644
--- a/command_test.go
+++ b/command_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/config.go b/config.go
index b28c510..291ddfb 100644
--- a/config.go
+++ b/config.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/config_test.go b/config_test.go
index 97c7783..2b2eb96 100644
--- a/config_test.go
+++ b/config_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/connect.go b/connect.go
index 8ed75ce..9b1790b 100644
--- a/connect.go
+++ b/connect.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/connect_test.go b/connect_test.go
index 44dde57..b792f1e 100644
--- a/connect_test.go
+++ b/connect_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/disconnect.go b/disconnect.go
index 549db28..9820d5a 100644
--- a/disconnect.go
+++ b/disconnect.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/disconnect_test.go b/disconnect_test.go
index 369ee34..dc429cd 100644
--- a/disconnect_test.go
+++ b/disconnect_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/flag.go b/flag.go
index 30848e1..b8178b9 100644
--- a/flag.go
+++ b/flag.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import "strconv"
diff --git a/scripts/gofmtcheck.sh b/scripts/gofmtcheck.sh
index 2f3fb61..3de081e 100755
--- a/scripts/gofmtcheck.sh
+++ b/scripts/gofmtcheck.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 
 echo "==> Checking that code complies with gofumpt requirements..."
 
diff --git a/testhelpers.go b/testhelpers.go
index 0171666..fba8c45 100644
--- a/testhelpers.go
+++ b/testhelpers.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package vaulthcplib
 
 import (
diff --git a/tools/tools.go b/tools/tools.go
index 3631222..283ffd8 100644
--- a/tools/tools.go
+++ b/tools/tools.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 //go:build tools
 
 // This file ensures tool dependencies are kept in sync.  This is the