diff --git a/src/XDEDRAW/XDEDRAW_Common.cxx b/src/XDEDRAW/XDEDRAW_Common.cxx
index 613a2780ac..0e0961e2c0 100644
--- a/src/XDEDRAW/XDEDRAW_Common.cxx
+++ b/src/XDEDRAW/XDEDRAW_Common.cxx
@@ -192,10 +192,12 @@ static Standard_Integer ReadIges (Draw_Interpretor& di, Standard_Integer argc, c
   
   DeclareAndCast(IGESControl_Controller,ctl,XSDRAW::Controller());
   if (ctl.IsNull()) XSDRAW::SetNorm("IGES");
+  //get value of the Test Harness parameter "read.only.visible"
   Standard_Integer readOnlyVisible = Interface_Static::IVal("read.iges.onlyvisible");
  
   IGESCAFControl_Reader reader ( XSDRAW::Session(),Standard_True);
   reader.SetReadVisible(readOnlyVisible);
+
   if (argc == 4) {
     Standard_Boolean mode = Standard_True;
     for ( Standard_Integer i = 0; argv[3][i] ; i++ )