diff --git a/GUI/View/SampleDesigner/CoreAndShellForm.h b/GUI/View/SampleDesigner/CoreAndShellForm.h
index 4b3771c8b466f080c689a85ab41091b8eed5000d..55e100d580c902df0a63b6de4a00466ee3123ec4 100644
--- a/GUI/View/SampleDesigner/CoreAndShellForm.h
+++ b/GUI/View/SampleDesigner/CoreAndShellForm.h
@@ -26,7 +26,6 @@ class SampleEditorController;
 
 //! Form for editing a core/shell particle
 class CoreAndShellForm : public QGroupBox {
-    Q_OBJECT
 public:
     CoreAndShellForm(QWidget* parent, CoreAndShellItem* item, SampleEditorController* ec,
                      bool allowRemove = true);