diff --git a/Source/Particles/Collision/BinaryCollision/Coulomb/PairWiseCoulombCollisionFunc.H b/Source/Particles/Collision/BinaryCollision/Coulomb/PairWiseCoulombCollisionFunc.H
index d0239d97911..3322c19ed2d 100644
--- a/Source/Particles/Collision/BinaryCollision/Coulomb/PairWiseCoulombCollisionFunc.H
+++ b/Source/Particles/Collision/BinaryCollision/Coulomb/PairWiseCoulombCollisionFunc.H
@@ -94,7 +94,7 @@ public:
             amrex::ParticleReal const  T1, amrex::ParticleReal const  T2,
             amrex::ParticleReal const  q1, amrex::ParticleReal const  q2,
             amrex::ParticleReal const  m1, amrex::ParticleReal const  m2,
-            amrex::Real const  dt, amrex::Real const /*dV*/, index_type coll_idx,
+            amrex::Real const  dt, amrex::Real const dV, index_type coll_idx,
             index_type const /*cell_start_pair*/, index_type* /*p_mask*/,
             index_type* /*p_pair_indices_1*/, index_type* /*p_pair_indices_2*/,
             amrex::ParticleReal* /*p_pair_reaction_weight*/,