diff --git a/cura/Settings/ContainerManager.py b/cura/Settings/ContainerManager.py
index 19a010fe2a..b833e1f1e9 100644
--- a/cura/Settings/ContainerManager.py
+++ b/cura/Settings/ContainerManager.py
@@ -1,7 +1,6 @@
 # Copyright (c) 2017 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-import copy
 import os.path
 import urllib.parse
 import uuid
@@ -29,10 +28,10 @@ from UM.i18n import i18nCatalog
 
 from cura.Settings.ExtruderManager import ExtruderManager
 from cura.Settings.ExtruderStack import ExtruderStack
-from cura.Machines.QualityManager import getMachineDefinitionIDForQualitySearch
 
 catalog = i18nCatalog("cura")
 
+
 ##  Manager class that contains common actions to deal with containers in Cura.
 #
 #   This is primarily intended as a class to be able to perform certain actions