Index: trunk/MagicSoft/Mars/mhflux/MMcSpectrumWeight.cc
===================================================================
--- trunk/MagicSoft/Mars/mhflux/MMcSpectrumWeight.cc	(revision 8034)
+++ trunk/MagicSoft/Mars/mhflux/MMcSpectrumWeight.cc	(revision 8035)
@@ -389,9 +389,8 @@
     }
 
-    TString form(GetFormulaWeightsX());
     if (fFunc)
         delete fFunc;
 
-    fFunc = new TF1("", form);
+    fFunc = new TF1("", GetFormulaWeightsX());
     gROOT->GetListOfFunctions()->Remove(fFunc);
     fFunc->SetName("SpectralWeighs");