Index: trunk/Mars/mhflux/MHFalseSource.cc
===================================================================
--- trunk/Mars/mhflux/MHFalseSource.cc	(revision 10281)
+++ trunk/Mars/mhflux/MHFalseSource.cc	(revision 11272)
@@ -256,5 +256,5 @@
 
     if (fHistOff)
-        MH::SetBinning(fHist, *fHistOff);
+        MH::CopyBinning(*fHistOff, fHist);
     else
     {