Index: trunk/MagicSoft/Mars/mbase/MTask.cc
===================================================================
--- trunk/MagicSoft/Mars/mbase/MTask.cc	(revision 1478)
+++ trunk/MagicSoft/Mars/mbase/MTask.cc	(revision 1479)
@@ -269,5 +269,5 @@
 // and afterwards set the filter for this task.
 //
-void MTask::SavePrimitive(ofstream &out, Option_t *o="")
+void MTask::SavePrimitive(ofstream &out, Option_t *o)
 {
     MParContainer::SavePrimitive(out);