1 files changed, 2 insertions, 2 deletions
diff --git a/canvas/source/cairo/cairo_spritecanvas.hxx b/canvas/source/cairo/cairo_spritecanvas.hxx
index a26701fea02e..b84086675b19 100644
--- a/canvas/source/cairo/cairo_spritecanvas.hxx
+++ b/canvas/source/cairo/cairo_spritecanvas.hxx
@@ -142,8 +142,8 @@ namespace cairocanvas
                               const css::rendering::ViewState&   viewState,
                               const css::rendering::RenderState& renderState ) override;
 
-        ::cairo::SurfaceSharedPtr getWindowSurface();
-        ::cairo::SurfaceSharedPtr getBufferSurface();
+        ::cairo::SurfaceSharedPtr const & getWindowSurface();
+        ::cairo::SurfaceSharedPtr const & getBufferSurface();
 
         const ::basegfx::B2ISize& getSizePixel();
         void setSizePixel( const ::basegfx::B2ISize& rSize );