diff --git a/GUI/View/Scene/MaskGraphicsScene.h b/GUI/View/Scene/MaskGraphicsScene.h
index 37500ce4b16661d9a476ba23846c4c8a2cf0cc46..c069097ae5a4dcfee5aa4dad07b55b7c177d28fb 100644
--- a/GUI/View/Scene/MaskGraphicsScene.h
+++ b/GUI/View/Scene/MaskGraphicsScene.h
@@ -25,10 +25,10 @@
 class ColorMap;
 class Data2DItem;
 class IShapeDisplay;
-class MaskListModel;
 class MaskEditorAction;
 class MaskGraphicsProxy;
 class MaskItem;
+class MaskListModel;
 class MaskObject;
 class PolygonDisplay;
 class SceneAdaptor;
diff --git a/GUI/View/Setup/MaskPanel.h b/GUI/View/Setup/MaskPanel.h
index b1529ee56da1dbf6a4d3339004483fcb446c4613..755e14f332ba0ee7d56a8301be17a767f4ff9683 100644
--- a/GUI/View/Setup/MaskPanel.h
+++ b/GUI/View/Setup/MaskPanel.h
@@ -24,8 +24,8 @@
 #include <functional>
 
 class Data2DItem;
-class MaskListModel;
 class MaskItem;
+class MaskListModel;
 
 //! Panel with list of masks and parameter editor for one selected mask.