diff --git a/Generators/FlowAfterburner/src/AddFlowByShifting.cxx b/Generators/FlowAfterburner/src/AddFlowByShifting.cxx
index 6c213ba4c172306c41cab74b514f3147a9228aea..72694de8f7127467b778d138fe7539dfbb61785f 100644
--- a/Generators/FlowAfterburner/src/AddFlowByShifting.cxx
+++ b/Generators/FlowAfterburner/src/AddFlowByShifting.cxx
@@ -211,7 +211,7 @@ StatusCode AddFlowByShifting::execute() {
     m_particles_processed = 0;
     for ( auto parent: mainvtx->particles_out())
 #else
-    auto mainvtx=*((*itr)->vertices_const_begin());
+    auto mainvtx=*((*itr)->vertices_begin());
     if(m_flow_fluctuations) Set_EbE_Fluctuation_Multipliers(mainvtx,hijing_pars->get_b(),rndmEngine);
       int particles_in_event = (*itr)->particles_size();
     m_particles_processed = 0;