Index: trunk/MagicSoft/Mars/mjobs/MJCalibration.cc
===================================================================
--- trunk/MagicSoft/Mars/mjobs/MJCalibration.cc	(revision 4178)
+++ trunk/MagicSoft/Mars/mjobs/MJCalibration.cc	(revision 4179)
@@ -922,5 +922,5 @@
   
   MReadMarsFile read("Events");
-  MRawFileRead rawread("");
+  MRawFileRead rawread(NULL);
 
   if (fDataCheck)