Index: trunk/Mars/mhflux/MAlphaFitter.cc
===================================================================
--- trunk/Mars/mhflux/MAlphaFitter.cc	(revision 20100)
+++ trunk/Mars/mhflux/MAlphaFitter.cc	(revision 20101)
@@ -559,5 +559,6 @@
     f.fFunc = new TF1(*fFunc);
     f.fFunc->SetName("Dummy");
-    gROOT->GetListOfFunctions()->Remove(f.fFunc);
+    gROOT->GetListOfFunctions()->Remove(fFunc);   // It seems Copy is called by the streamer which adds the fFunc
+    gROOT->GetListOfFunctions()->Remove(f.fFunc); // to the list... make sure to remove it!
 }