diff --git a/cura/Machines/Models/QualitySettingsModel.py b/cura/Machines/Models/QualitySettingsModel.py
index 8a956263e7..c15dddce4c 100644
--- a/cura/Machines/Models/QualitySettingsModel.py
+++ b/cura/Machines/Models/QualitySettingsModel.py
@@ -152,7 +152,7 @@ class QualitySettingsModel(ListModel):
             if self._selected_position == self.GLOBAL_STACK_POSITION:
                 user_value = global_container_stack.userChanges.getProperty(definition.key, "value")
             else:
-                extruder_stack = global_container_stack.extruders[str(self._selected_position)]
+                extruder_stack = global_container_stack.extruderList[self._selected_position]
                 user_value = extruder_stack.userChanges.getProperty(definition.key, "value")
 
             if profile_value is None and user_value is None: