diff --git a/cura/Settings/MachineManager.py b/cura/Settings/MachineManager.py
index a150e94e76..8aa060896a 100755
--- a/cura/Settings/MachineManager.py
+++ b/cura/Settings/MachineManager.py
@@ -1122,7 +1122,7 @@ class MachineManager(QObject):
     def createMachineManager(engine=None, script_engine=None):
         return MachineManager()
 
-    @deprecated #Use ExtruderStack.material = ... and it won't be necessary.
+    @deprecated("Use ExtruderStack.material = ... and it won't be necessary", "2.7")
     def _updateMaterialContainer(self, definition: "DefinitionContainer", stack: "ContainerStack", variant_container: Optional["InstanceContainer"] = None, preferred_material_name: Optional[str] = None):
         if not definition.getMetaDataEntry("has_materials"):
             return self._empty_material_container