diff --git a/libsrc/geom2d/csg2d.hpp b/libsrc/geom2d/csg2d.hpp
index 0adc1216..210c3d81 100644
--- a/libsrc/geom2d/csg2d.hpp
+++ b/libsrc/geom2d/csg2d.hpp
@@ -574,7 +574,7 @@ class CSG2d
 };
 
 Solid2d Circle(double x, double y, double r, string name="", string bc="");
-Solid2d Rectangle(double x0, double x1, double y0, double y1, string name="", string bc="");
+Solid2d Rectangle(double x0, double x1, double y0, double y1, string name, string bc);
 
 Solid2d AddIntersectionPoints ( Solid2d s1, Solid2d s2 );
 Solid2d ClipSolids ( Solid2d s1, Solid2d s2, bool intersect=true );
diff --git a/libsrc/geom2d/python_geom2d.cpp b/libsrc/geom2d/python_geom2d.cpp
index f3f83f57..1875f6ba 100644
--- a/libsrc/geom2d/python_geom2d.cpp
+++ b/libsrc/geom2d/python_geom2d.cpp
@@ -418,8 +418,11 @@ DLL_HEADER void ExportGeom2d(py::module &m)
     ;
 
 
-  m.def("Rectangle", &Rectangle);
-  m.def("Circle", &Circle);
+  m.def("Rectangle", [](double x0, double x1, double y0, double y1, string bc, string mat)
+		  { return Rectangle(x0,x1,y0,y1,bc,mat); },
+		  py::arg("x0"), py::arg("x1"), py::arg("y0"), py::arg("y1"), py::arg("bc")="", py::arg("mat")=""
+       );
+  m.def("Circle", Circle, py::arg("x"), py::arg("y"), py::arg("r"), py::arg("bc")="", py::arg("mat")="");
 
   py::class_<CSG2d>(m, "CSG2d")
     .def(py::init<>())