diff --git a/cura/Machines/ContainerGroup.py b/cura/Machines/ContainerGroup.py
index b7ad634f3c..a722b5b4f1 100644
--- a/cura/Machines/ContainerGroup.py
+++ b/cura/Machines/ContainerGroup.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from typing import List, Optional
 
 from PyQt5.Qt import QObject, pyqtSlot
diff --git a/cura/Machines/ContainerNode.py b/cura/Machines/ContainerNode.py
index 4d8d663284..6a839fb921 100644
--- a/cura/Machines/ContainerNode.py
+++ b/cura/Machines/ContainerNode.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from typing import Optional
 
 from collections import OrderedDict
diff --git a/cura/Machines/MaterialManager.py b/cura/Machines/MaterialManager.py
index 07b83853cf..997d37a672 100644
--- a/cura/Machines/MaterialManager.py
+++ b/cura/Machines/MaterialManager.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from collections import defaultdict, OrderedDict
 from typing import Optional
 
diff --git a/cura/Machines/Models/BuildPlateModel.py b/cura/Machines/Models/BuildPlateModel.py
index fccf4fa44e..1cb94216a6 100644
--- a/cura/Machines/Models/BuildPlateModel.py
+++ b/cura/Machines/Models/BuildPlateModel.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from PyQt5.QtCore import Qt
 
 from UM.Application import Application
diff --git a/cura/Machines/QualityManager.py b/cura/Machines/QualityManager.py
index eb8a3611c1..7e2f738890 100644
--- a/cura/Machines/QualityManager.py
+++ b/cura/Machines/QualityManager.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from typing import Optional
 
 from PyQt5.Qt import pyqtSignal