diff --git a/cura/Settings/ExtruderManager.py b/cura/Settings/ExtruderManager.py
index 0aceabca6c..7a8c1be8bc 100755
--- a/cura/Settings/ExtruderManager.py
+++ b/cura/Settings/ExtruderManager.py
@@ -458,7 +458,7 @@ class ExtruderManager(QObject):
     #   \param machine_id The machine to remove the extruders for.
     def removeMachineExtruders(self, machine_id: str):
         for extruder in self.getMachineExtruders(machine_id):
-            ContainerRegistry.getInstance().removeContainer(extruder.user.getId())
+            ContainerRegistry.getInstance().removeContainer(extruder.userChanges.getId())
             ContainerRegistry.getInstance().removeContainer(extruder.getId())
 
     ##  Returns extruders for a specific machine.