--- a/src/gui/itemviews/qcolumnview_p.h
+++ b/src/gui/itemviews/qcolumnview_p.h
@@ -129,6 +129,13 @@ public:
     void setSelection(const QRect &, QItemSelectionModel::SelectionFlags)
     {
     }
+    void scrollContentsBy(int dx, int dy)
+    {
+        if (!previewWidget)
+            return;
+        previewWidget->scroll(dx, dy);
+        scrollDirtyRegion(dx, dy);
+    }
 private:
     QWidget *previewWidget;
 };