diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 38adde8b3..428ea07c6 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -896,7 +896,7 @@ std::vector<PresetComboBox*>& Sidebar::combos_filament()
 class PlaterDropTarget : public wxFileDropTarget
 {
 public:
-    PlaterDropTarget(Plater *plater) : plater(plater) {}
+	PlaterDropTarget(Plater *plater) : plater(plater) { this->SetDefaultAction(wxDragCopy); }
 
     virtual bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString &filenames);