Index: trunk/MagicSoft/Mars/mhist/MHFindSignificance.cc
===================================================================
--- trunk/MagicSoft/Mars/mhist/MHFindSignificance.cc	(revision 5346)
+++ trunk/MagicSoft/Mars/mhist/MHFindSignificance.cc	(revision 5347)
@@ -1734,5 +1734,7 @@
 
     //TCanvas *fCanvas = new TCanvas("Alpha", "Alpha plot", 600, 600);
-    fCanvas = new TCanvas(fHist->GetName(), "Alpha plot", 600, 600);
+//      fCanvas = new TCanvas(fHist->GetName(), "Alpha plot", 600, 600);
+
+    TVirtualPad *fCanvas = gPad ? gPad : MakeDefCanvas(this);
 
     //gStyle->SetOptFit(1011);