Index: trunk/MagicSoft/Mars/mfileio/MReadTree.cc
===================================================================
--- trunk/MagicSoft/Mars/mfileio/MReadTree.cc	(revision 1474)
+++ trunk/MagicSoft/Mars/mfileio/MReadTree.cc	(revision 1476)
@@ -783,5 +783,5 @@
 // gui elements to a macro-file.
 //
-void MReadTree::SavePrimitive(ofstream &out, Option_t *o="")
+void MReadTree::SavePrimitive(ofstream &out, Option_t *o)
 {
     TString name = ToLower(fName);
Index: trunk/MagicSoft/Mars/mfileio/MWriteRootFile.cc
===================================================================
--- trunk/MagicSoft/Mars/mfileio/MWriteRootFile.cc	(revision 1474)
+++ trunk/MagicSoft/Mars/mfileio/MWriteRootFile.cc	(revision 1476)
@@ -403,5 +403,5 @@
 // gui elements to a macro-file.
 //
-void MWriteRootFile::SavePrimitive(ofstream &out, Option_t *o="")
+void MWriteRootFile::SavePrimitive(ofstream &out, Option_t *o)
 {
     out << "   MWriteRootFile " << ToLower(fName) << "(\"";