diff --git a/LICENSE b/LICENSE
index fdb63837..f288702d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,17 +1,3 @@
-This file includes licensing information for Arduino GitHub Actions.
-
-Copyright (c) 2019 ARDUINO SA
-
-The software is released under the GNU General Public License, which covers the main body
-of the [insert app name] code. The terms of this license can be found at:
-https://www.gnu.org/licenses/gpl-3.0.en.html
-
-You can be released from the requirements of the above licenses by purchasing
-a commercial license. Buying such a license is mandatory if you want to modify or
-otherwise use the software for commercial activities involving the Arduino
-software without disclosing the source code of your own applications. To purchase
-a commercial license, send an email to license@arduino.cc
-
                     GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 31dbe9a4..164ae52b 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -1,3 +1,15 @@
+// Copyright (c) 2019 ARDUINO SA
+//
+// The software is released under the GNU General Public License, which covers the main body
+// of the arduino/setup-taskfile code. The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc
+
 import io = require("@actions/io");
 import path = require("path");
 import os = require("os");
diff --git a/src/installer.ts b/src/installer.ts
index d8099de2..bb7dece7 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -1,3 +1,15 @@
+// Copyright (c) 2019 ARDUINO SA
+//
+// The software is released under the GNU General Public License, which covers the main body
+// of the arduino/setup-taskfile code. The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc
+
 // Load tempDirectory before it gets wiped by tool-cache
 let tempDirectory = process.env["RUNNER_TEMP"] || "";
 
diff --git a/src/main.ts b/src/main.ts
index 91cdd656..355f20a2 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,3 +1,15 @@
+// Copyright (c) 2019 ARDUINO SA
+//
+// The software is released under the GNU General Public License, which covers the main body
+// of the arduino/setup-taskfile code. The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc
+
 import * as core from "@actions/core";
 import * as installer from "./installer";