diff --git a/src/lagrangian/intermediate/parcels/Templates/ReactingMultiphaseParcel/ReactingMultiphaseParcel.C b/src/lagrangian/intermediate/parcels/Templates/ReactingMultiphaseParcel/ReactingMultiphaseParcel.C
index cbe7b18c98..12359be671 100644
--- a/src/lagrangian/intermediate/parcels/Templates/ReactingMultiphaseParcel/ReactingMultiphaseParcel.C
+++ b/src/lagrangian/intermediate/parcels/Templates/ReactingMultiphaseParcel/ReactingMultiphaseParcel.C
@@ -372,7 +372,7 @@ void Foam::ReactingMultiphaseParcel<ParcelType>::calc
 
             td.cloud().hsTrans()[cellI] += dm*HsEff(td, pc, T0, idG, idL, idS);
 
-            td.cloud().phaseChange().addToPhaseChangeMass(dm);
+            td.cloud().phaseChange().addToPhaseChangeMass(np0*mass1);
         }
 
         return;
diff --git a/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcel.C b/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcel.C
index 553fb7ebfd..f678e7cf42 100644
--- a/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcel.C
+++ b/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcel.C
@@ -530,7 +530,7 @@ void Foam::ReactingParcel<ParcelType>::calc
             }
             td.cloud().UTrans()[cellI] += dm*U0;
 
-            td.cloud().phaseChange().addToPhaseChangeMass(dm);
+            td.cloud().phaseChange().addToPhaseChangeMass(np0*mass1);
         }
 
         return;