From c40a5699a9298bdf9c541f44f9a3d0cef0134c7a Mon Sep 17 00:00:00 2001
From: Shahzad Malik Muzaffar <shahzad.malik.muzaffar@cern.ch>
Date: Wed, 5 Nov 2025 12:16:11 +0100
Subject: [PATCH] No need to explicitly delete the pre-existsing histogram for
 ROOT 6.38

---
 Alignment/OfflineValidation/bin/jetHtPlotter.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Alignment/OfflineValidation/bin/jetHtPlotter.cc b/Alignment/OfflineValidation/bin/jetHtPlotter.cc
index 2f2a3590483fe..70009a687c088 100644
--- a/Alignment/OfflineValidation/bin/jetHtPlotter.cc
+++ b/Alignment/OfflineValidation/bin/jetHtPlotter.cc
@@ -362,7 +362,9 @@ std::vector<double> scaleGraphByLuminosity(TGraphErrors *runGraph,
   }  // Loop over all runs in original histogram
 
   // Delete remaining old content and replace it with new one calculated from luminosities
+#if ROOT_VERSION_CODE < ROOT_VERSION(6, 38, 0)
   runGraph->GetHistogram()->Delete();
+#endif
   runGraph->SetHistogram(nullptr);
   for (int iRun = 0; iRun < nRuns; iRun++) {
     runGraph->SetPoint(iRun, xAxisValues.at(iRun), yAxisValues.at(iRun));