1 files changed, 1 insertions, 7 deletions
diff --git a/chart2/source/controller/main/ChartDropTargetHelper.hxx b/chart2/source/controller/main/ChartDropTargetHelper.hxx
index 4955d6eaea43..6a5383825836 100644
--- a/chart2/source/controller/main/ChartDropTargetHelper.hxx
+++ b/chart2/source/controller/main/ChartDropTargetHelper.hxx
@@ -21,12 +21,6 @@
 #include <vcl/transfer.hxx>
 #include <rtl/ref.hxx>
 
-namespace com::sun::star {
-    namespace chart2 {
-        class XChartDocument;
-    }
-}
-
 namespace chart
 {
 class ChartModel;
@@ -37,7 +31,7 @@ public:
     ChartDropTargetHelper() = delete;
     explicit ChartDropTargetHelper(
         const css::uno::Reference< css::datatransfer::dnd::XDropTarget >& rxDropTarget,
-        const rtl::Reference<::chart::ChartModel> & xChartDocument );
+        rtl::Reference<::chart::ChartModel> xChartDocument );
     virtual ~ChartDropTargetHelper() override;
 
 protected: