diff --git a/Detectors/TOF/prototyping/convertTreeTo02object.C b/Detectors/TOF/prototyping/convertTreeTo02object.C
new file mode 100644
index 0000000000000..17bf73ba68074
--- /dev/null
+++ b/Detectors/TOF/prototyping/convertTreeTo02object.C
@@ -0,0 +1,26 @@
+void convertTreeTo02object(){
+
+  TFile* fout = TFile::Open("TOFcalibTreeOut.root", "RECREATE");
+  TTree* tout = new TTree("calibTOF", "Calib TOF infos");
+  
+  TFile* f = TFile::Open("TOFcalibTree.root");
+  TTree* t = (TTree*)f->Get("aodTree");
+  std::vector<o2::dataformats::CalibInfoTOF> mCalibInfoTOF;
+  tout->Branch("TOFCalibInfo", &mCalibInfoTOF);
+
+  Printf("The tree has %lld entries", t->GetEntries());
+  for (int ientry = 1; ientry <= t->GetEntries(); ientry++){
+    if (ientry % 100 == 0) Printf("processing event %d", ientry);
+    //for (int ientry = 1; ientry <= 3; ientry++){
+    t->GetEntry(ientry);
+    for (int i = 0; i < t->GetLeaf("nhits")->GetValue(); i++){
+      mCalibInfoTOF.emplace_back(t->GetLeaf("index")->GetValue(i), t->GetLeaf("time")->GetValue(i) - t->GetLeaf("texp")->GetValue(i), t->GetLeaf("tot")->GetValue(i) );
+    }
+    tout->Fill();
+    mCalibInfoTOF.clear();
+  }
+
+  
+  fout->cd();
+  tout->Write();
+}