diff --git a/GUI/View/SampleDesigner/SampleEditorController.cpp b/GUI/View/SampleDesigner/SampleEditorController.cpp
index 0020e2f6353c05e9721ff365682327f24fe3ae0f..cd5a15681392ca1cbfa9614cdb7ebfedc68b3100 100644
--- a/GUI/View/SampleDesigner/SampleEditorController.cpp
+++ b/GUI/View/SampleDesigner/SampleEditorController.cpp
@@ -399,11 +399,6 @@ void SampleEditorController::setCurrentIndex(ISelectionContainerForm* widget, in
     emit modified();
 }
 
-QUndoStack* SampleEditorController::undoStack()
-{
-    return &m_undoStack;
-}
-
 MaterialModel* SampleEditorController::materialModel() const
 {
     return &m_sampleItem->materialModel();
diff --git a/GUI/View/SampleDesigner/SampleEditorController.h b/GUI/View/SampleDesigner/SampleEditorController.h
index 2a2c6d3937fbb3427c3c78f52996256e4243e559..99f26c55faaa52584b7320f6d53b186018613978 100644
--- a/GUI/View/SampleDesigner/SampleEditorController.h
+++ b/GUI/View/SampleDesigner/SampleEditorController.h
@@ -62,9 +62,6 @@ public:
     //! The item on which this controller operates.
     SampleItem* sampleItem() const;
 
-    //! The contained undo stack.
-    QUndoStack* undoStack();
-
     //! The materials of the current document
     MaterialModel* materialModel() const;