diff --git a/Polygon/include/CGAL/Multipolygon_with_holes_2.h b/Polygon/include/CGAL/Multipolygon_with_holes_2.h
index 9c81bd955911..7ed5313e3efc 100644
--- a/Polygon/include/CGAL/Multipolygon_with_holes_2.h
+++ b/Polygon/include/CGAL/Multipolygon_with_holes_2.h
@@ -78,7 +78,7 @@ class Multipolygon_with_holes_2 {
 
   void add_polygon(const Polygon_2& pgn) { m_polygons.push_back(Polygon_with_holes_2(pgn)); }
 
-  void add_polygon(const Polygon_2&& pgn) { m_polygons.push_back(Polygon_with_holes_2(std::forward(pgn))); }
+  void add_polygon(Polygon_2&& pgn) { m_polygons.push_back(Polygon_with_holes_2(std::forward<Polygon_with_holes_2>(pgn))); }
 
   void add_polygon_with_holes(const Polygon_with_holes_2& pgn) { m_polygons.push_back(pgn); }