diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp
index 62ff65f4b1..ba6070de97 100644
--- a/samples/drawing/drawing.cpp
+++ b/samples/drawing/drawing.cpp
@@ -2315,6 +2315,8 @@ void MyFrame::OnSave(wxCommandEvent& WXUNUSED(event))
         {
             wxBitmap bmp(width, height);
             wxMemoryDC mdc(bmp);
+            mdc.SetBackground(*wxWHITE_BRUSH);
+            mdc.Clear();
             m_canvas->Draw(mdc);
             bmp.ConvertToImage().SaveFile(dlg.GetPath());
         }