X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=PWG%2Fmuon%2FAliAnalysisTaskCreateMixedDimuons.cxx;h=d61d8ec23d770c0a5d179968e4d49250ad4a8f31;hp=c7bd3fa500b788fe96bb9cb128bd3dccbd0f57eb;hb=0a918d8d80e9900008464c3bb616f57b0c154abf;hpb=f8faa5ab52f86f6da04cad09b9cf870b856c969e

diff --git a/PWG/muon/AliAnalysisTaskCreateMixedDimuons.cxx b/PWG/muon/AliAnalysisTaskCreateMixedDimuons.cxx
index c7bd3fa500b..d61d8ec23d7 100644
--- a/PWG/muon/AliAnalysisTaskCreateMixedDimuons.cxx
+++ b/PWG/muon/AliAnalysisTaskCreateMixedDimuons.cxx
@@ -197,9 +197,12 @@ void AliAnalysisTaskCreateMixedDimuons::UserExec(Option_t *) {
 	  }
 	}
 	
-	fOutputUserAOD->GetHeader()->SetRefMultiplicity(nFWMUonsAdded); 
-	fOutputUserAOD->GetHeader()->SetRefMultiplicityPos(nPosTracksAdded);
-	fOutputUserAOD->GetHeader()->SetRefMultiplicityNeg(nNegTracksAdded);
+
+        AliAODHeader * header = dynamic_cast<AliAODHeader*>(fOutputUserAOD->GetHeader());
+        if(!header) AliFatal("Not a standard AOD");
+	header->SetRefMultiplicity(nFWMUonsAdded); 
+	header->SetRefMultiplicityPos(nPosTracksAdded);
+	header->SetRefMultiplicityNeg(nNegTracksAdded);
 	
 	fOutputUserHandler -> FinishEvent();