diff --git a/src/Mod/Sketcher/Gui/TaskSketcherElements.cpp b/src/Mod/Sketcher/Gui/TaskSketcherElements.cpp
index 7baf45f4a3..cb942082e6 100644
--- a/src/Mod/Sketcher/Gui/TaskSketcherElements.cpp
+++ b/src/Mod/Sketcher/Gui/TaskSketcherElements.cpp
@@ -74,6 +74,29 @@ void ElementView::FUNC(){ \
 
 
 namespace SketcherGui {
+
+class ElementItemDelegate : public QStyledItemDelegate
+{
+    Q_OBJECT
+public:
+    explicit ElementItemDelegate(ElementView* parent);
+    ~ElementItemDelegate() override;
+
+    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
+    bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index) override;
+
+    ElementItem* getElementtItem(const QModelIndex& index) const;
+
+    const int border = 1; //1px, looks good around buttons.
+    const int leftMargin = 4; //4px on the left of icons, looks good.
+    mutable int customIconsMargin = 4;
+    const int textBottomMargin = 5; //5px center the text.
+
+Q_SIGNALS:
+    void itemHovered(QModelIndex);
+    void itemChecked(QModelIndex, Qt::CheckState state);
+};
+
 // helper class to store additional information about the listWidget entry.
 class ElementItem : public QListWidgetItem
 {
@@ -1465,3 +1488,4 @@ void TaskSketcherElements::onSettingsExtendedInformationChanged()
 }
 
 #include "moc_TaskSketcherElements.cpp"
+#include "TaskSketcherElements.moc" // For Delegate as it is QOBJECT
diff --git a/src/Mod/Sketcher/Gui/TaskSketcherElements.h b/src/Mod/Sketcher/Gui/TaskSketcherElements.h
index 7efa0a7158..ede72efd5a 100644
--- a/src/Mod/Sketcher/Gui/TaskSketcherElements.h
+++ b/src/Mod/Sketcher/Gui/TaskSketcherElements.h
@@ -55,27 +55,7 @@ enum class SubElementType {
     none
 };
 
-class ElementItemDelegate : public QStyledItemDelegate
-{
-    Q_OBJECT
-public:
-    explicit ElementItemDelegate(ElementView* parent);
-    ~ElementItemDelegate() override;
 
-    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
-    bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index) override;
-
-    ElementItem* getElementtItem(const QModelIndex& index) const;
-
-    const int border = 1; //1px, looks good around buttons.
-    const int leftMargin = 4; //4px on the left of icons, looks good.
-    mutable int customIconsMargin = 4;
-    const int textBottomMargin = 5; //5px center the text.
-
-Q_SIGNALS:
-    void itemHovered(QModelIndex);
-    void itemChecked(QModelIndex, Qt::CheckState state);
-};
 
 class ElementView : public QListWidget
 {