diff --git a/PWGDQ/Core/HistogramsLibrary.cxx b/PWGDQ/Core/HistogramsLibrary.cxx
index dd9a1304fb3..c04481c7546 100644
--- a/PWGDQ/Core/HistogramsLibrary.cxx
+++ b/PWGDQ/Core/HistogramsLibrary.cxx
@@ -1270,7 +1270,7 @@ void o2::aod::dqhistograms::DefineHistograms(HistogramManager* hm, const char* h
     }
     if (subGroupStr.Contains("correlation-emu")) {
       hm->AddHistogram(histClass, "DeltaPhiPair2_DeltaEtaPair2", "", false, 600, -o2::constants::math::PIHalf, 1.5 * o2::constants::math::PI, VarManager::kDeltaPhiPair2, 350, 1.5, 5.0, VarManager::kDeltaEtaPair2);
-      hm->AddHistogram(histClass, "DeltaPhiPair2_Pt", "", false, 600, -0.5 * TMath::Pi(), 1.5 * TMath::Pi(), VarManager::kDeltaPhiPair2, 200, 0.0, 20.0, VarManager::kPt);
+      hm->AddHistogram(histClass, "DeltaPhiPair2_Pt", "", false, 600, -o2::constants::math::PIHalf, 1.5 * o2::constants::math::PI, VarManager::kDeltaPhiPair2, 200, 0.0, 20.0, VarManager::kPt);
     }
     if (subGroupStr.Contains("dielectrons")) {
       if (subGroupStr.Contains("prefilter")) {