diff --git a/src/ifcgeom/kernels/cgal/CgalKernel.cpp b/src/ifcgeom/kernels/cgal/CgalKernel.cpp
index bc13ea6fb0..10e616c318 100644
--- a/src/ifcgeom/kernels/cgal/CgalKernel.cpp
+++ b/src/ifcgeom/kernels/cgal/CgalKernel.cpp
@@ -245,7 +245,9 @@ bool IfcGeom::CgalKernel::convert_openings(const IfcSchema::IfcProduct* entity,
       
       for ( unsigned int i = 0; i < opening_shapes.size(); ++ i ) {
         cgal_placement_t gtrsf;
-        if (opening_shapes[i].Placement()) gtrsf = *(CgalPlacement*)opening_shapes[i].Placement();
+        if (opening_shapes[i].Placement()) {
+          gtrsf = *(CgalPlacement*)opening_shapes[i].Placement();
+        }
         gtrsf = gtrsf * opening_trsf;
         cgal_shape_t opening_shape(((CgalShape*)opening_shapes[i].Shape())->shape());
         opening_shape.transform(gtrsf);
@@ -275,24 +277,24 @@ bool IfcGeom::CgalKernel::convert_openings(const IfcSchema::IfcProduct* entity,
     
     for (auto &opening: opening_shapelist) {
       
-      CGAL::Polyhedron_3<Kernel> polyhedron;
-      brep_cut_result.convert_to_polyhedron(polyhedron);
-      std::ofstream fresult;
-      fresult.open("/Users/ken/Desktop/before.off");
-      fresult << polyhedron << std::endl;
-      fresult.close();
-      
-      opening.convert_to_polyhedron(polyhedron);
-      fresult.open("/Users/ken/Desktop/opening.off");
-      fresult << polyhedron << std::endl;
-      fresult.close();
+//      CGAL::Polyhedron_3<Kernel> polyhedron;
+//      brep_cut_result.convert_to_polyhedron(polyhedron);
+//      std::ofstream fresult;
+//      fresult.open("/Users/ken/Desktop/before.off");
+//      fresult << polyhedron << std::endl;
+//      fresult.close();
+//      
+//      opening.convert_to_polyhedron(polyhedron);
+//      fresult.open("/Users/ken/Desktop/opening.off");
+//      fresult << polyhedron << std::endl;
+//      fresult.close();
       
       brep_cut_result -= opening;
       
-      brep_cut_result.convert_to_polyhedron(polyhedron);
-      fresult.open("/Users/ken/Desktop/after.off");
-      fresult << polyhedron << std::endl;
-      fresult.close();
+//      brep_cut_result.convert_to_polyhedron(polyhedron);
+//      fresult.open("/Users/ken/Desktop/after.off");
+//      fresult << polyhedron << std::endl;
+//      fresult.close();
     }
     
     if (brep_cut_result.is_valid()) {