diff --git a/libsrc/occ/python_occ_shapes.cpp b/libsrc/occ/python_occ_shapes.cpp
index 8d0d2821..432ec531 100644
--- a/libsrc/occ/python_occ_shapes.cpp
+++ b/libsrc/occ/python_occ_shapes.cpp
@@ -2035,6 +2035,8 @@ tangents : Dict[int, gp_Vec2d]
   
   m.def("Glue", [] (const std::vector<TopoDS_Shape> shapes) -> TopoDS_Shape
         {
+          if(shapes.size() == 1)
+            return shapes[0];
           BOPAlgo_Builder builder;
           for (auto & s : shapes)
             {