diff --git a/PWGEM/Dilepton/Core/DileptonHadronMPC.h b/PWGEM/Dilepton/Core/DileptonHadronMPC.h
index 5f157ade948..11fedd03212 100644
--- a/PWGEM/Dilepton/Core/DileptonHadronMPC.h
+++ b/PWGEM/Dilepton/Core/DileptonHadronMPC.h
@@ -523,7 +523,7 @@ struct DileptonHadronMPC {
       // fRegistry.addClone("DileptonHadron/same/", "DileptonHadron/mix/");
 
       // hadron-hadron
-      const AxisSpec axis_dphi_hh{cfgNbinsDPhi, -M_PI / 2, 3 * M_PI / 2, "#Delta#varphi = #varphi_{h}^{ref1} - #varphi_{h}^{ref2} (rad.)"};
+      const AxisSpec axis_dphi_hh{90, -M_PI / 2, 3 * M_PI / 2, "#Delta#varphi = #varphi_{h}^{ref1} - #varphi_{h}^{ref2} (rad.)"};
       fRegistry.add("HadronHadron/same/hDEtaDPhi", "hadron-hadron 2PC", kTH2D, {axis_dphi_hh, axis_deta_hh}, true);
       fRegistry.addClone("HadronHadron/same/", "HadronHadron/mix/");
       fRegistry.add("HadronHadron/mix/hDiffBC", "diff. global BC in mixed event;|BC_{current} - BC_{mixed}|", kTH1D, {{10001, -0.5, 10000.5}}, true);
diff --git a/PWGEM/PhotonMeson/Core/DiphotonHadronMPC.h b/PWGEM/PhotonMeson/Core/DiphotonHadronMPC.h
index 01619ba089c..7478a70a764 100644
--- a/PWGEM/PhotonMeson/Core/DiphotonHadronMPC.h
+++ b/PWGEM/PhotonMeson/Core/DiphotonHadronMPC.h
@@ -368,7 +368,7 @@ struct DiphotonHadronMPC {
 
     // hadron-hadron
     const AxisSpec axis_deta_hh{60, -3, +3, "#Delta#eta = #eta_{h}^{ref1} - #eta_{h}^{ref2}"};
-    const AxisSpec axis_dphi_hh{cfgNbinsDPhi, -M_PI / 2, +3 * M_PI / 2, "#Delta#varphi = #varphi_{h}^{ref1} - #varphi_{h}^{ref2} (rad.)"};
+    const AxisSpec axis_dphi_hh{90, -M_PI / 2, +3 * M_PI / 2, "#Delta#varphi = #varphi_{h}^{ref1} - #varphi_{h}^{ref2} (rad.)"};
     // const AxisSpec axis_cosndphi_hh{cfgNbinsCosNDPhi, -1, +1, std::format("cos({0:d}(#varphi_{{h}}^{{ref1}} - #varphi_{{h}}^{{ref2}}))", cfgNmod.value)};
     fRegistry.add("HadronHadron/same/hDEtaDPhi", "hadron-hadron 2PC", kTH2D, {axis_dphi_hh, axis_deta_hh}, true);
     fRegistry.addClone("HadronHadron/same/", "HadronHadron/mix/");