Index: trunk/MagicSoft/Mars/mhbase/MFillH.cc
===================================================================
--- trunk/MagicSoft/Mars/mhbase/MFillH.cc	(revision 3927)
+++ trunk/MagicSoft/Mars/mhbase/MFillH.cc	(revision 4058)
@@ -524,5 +524,5 @@
         fCanvas->cd();
 
-    Bool_t rc = fH->Fill(fParContainer, fWeight?fWeight->GetWeight():1);
+    const Bool_t rc = fH->Fill(fParContainer, fWeight?fWeight->GetWeight():1);
 
     if (save && fCanvas)