Index: trunk/MagicSoft/Mars/mjobs/MJCut.cc
===================================================================
--- trunk/MagicSoft/Mars/mjobs/MJCut.cc	(revision 8661)
+++ trunk/MagicSoft/Mars/mjobs/MJCut.cc	(revision 8662)
@@ -996,8 +996,8 @@
         if (!set.IsMonteCarlo())
             tlist.AddToList(&fillvs, "EffectiveOnTime");
-
-        // It is not really necessary to re-calculate the image parameters
-        // for the the on-source for MCs, but it is done for symmetry reasons
-        tlist2.AddToListBefore(&fillvs, &scalc);
+        else
+            // It is not really necessary to re-calculate the image parameters
+            // for the the on-source for MCs, but it is done for symmetry reasons
+            tlist2.AddToListBefore(&fillvs, &scalc);
     }