diff --git a/octoprint_klipper/__init__.py b/octoprint_klipper/__init__.py
index fea1710..dd0afae 100644
--- a/octoprint_klipper/__init__.py
+++ b/octoprint_klipper/__init__.py
@@ -1,4 +1,10 @@
 # coding=utf-8
+# OctoPrint Klipper Plugin
+#
+# Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+#
+# This file may be distributed under the terms of the GNU GPLv3 license.
+
 from __future__ import absolute_import
 import datetime
 import logging
diff --git a/octoprint_klipper/static/js/klipper.js b/octoprint_klipper/static/js/klipper.js
index e976dc6..1f7522b 100644
--- a/octoprint_klipper/static/js/klipper.js
+++ b/octoprint_klipper/static/js/klipper.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
     function KlipperViewModel(parameters) {
         var self = this;
diff --git a/octoprint_klipper/static/js/klipper_graph.js b/octoprint_klipper/static/js/klipper_graph.js
index 82bea2e..8cc7b38 100644
--- a/octoprint_klipper/static/js/klipper_graph.js
+++ b/octoprint_klipper/static/js/klipper_graph.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
 
 function KlipperGraphViewModel(parameters) {
diff --git a/octoprint_klipper/static/js/klipper_leveling.js b/octoprint_klipper/static/js/klipper_leveling.js
index c0fd3d2..35dced0 100644
--- a/octoprint_klipper/static/js/klipper_leveling.js
+++ b/octoprint_klipper/static/js/klipper_leveling.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
     function KlipperLevelingViewModel(parameters) {
         var self = this;
diff --git a/octoprint_klipper/static/js/klipper_offset.js b/octoprint_klipper/static/js/klipper_offset.js
index 67f5df1..35a290a 100644
--- a/octoprint_klipper/static/js/klipper_offset.js
+++ b/octoprint_klipper/static/js/klipper_offset.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
     function KlipperOffsetDialogViewModel(parameters) {
         var self = this;
diff --git a/octoprint_klipper/static/js/klipper_pid_tuning.js b/octoprint_klipper/static/js/klipper_pid_tuning.js
index b7a88b8..195b01f 100644
--- a/octoprint_klipper/static/js/klipper_pid_tuning.js
+++ b/octoprint_klipper/static/js/klipper_pid_tuning.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
     function KlipperPidTuningViewModel(parameters) {
         var self = this;
diff --git a/octoprint_klipper/static/js/klipper_settings.js b/octoprint_klipper/static/js/klipper_settings.js
index 6dd8cb6..f72b95d 100644
--- a/octoprint_klipper/static/js/klipper_settings.js
+++ b/octoprint_klipper/static/js/klipper_settings.js
@@ -1,3 +1,9 @@
+// OctoPrint Klipper Plugin
+//
+// Copyright (C) 2018  Martin Muehlhaeuser <github@mmone.de>
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
+
 $(function() {
     $('#klipper-settings a:first').tab('show');
     function KlipperSettingsViewModel(parameters) {