diff --git a/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.C b/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.C
index 10bb48d887..128750c3a6 100644
--- a/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.C
+++ b/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.C
@@ -266,11 +266,10 @@ template<class CloudType>
 Foam::label Foam::ParticleCollector<CloudType>::collectParcelPolygon
 (
     const point& position,
-    const vector& U
+    const vector& U,
+    const scalar dt
 ) const
 {
-    scalar dt = this->owner().db().time().deltaTValue();
-
     point end(position + dt*U);
 
     label dummyNearType = -1;
@@ -322,13 +321,12 @@ template<class CloudType>
 Foam::label Foam::ParticleCollector<CloudType>::collectParcelConcentricCircles
 (
     const point& position,
-    const vector& U
+    const vector& U,
+    const scalar dt
 ) const
 {
     label secI = -1;
 
-    scalar dt = this->owner().db().time().deltaTValue();
-
     point end(position + dt*U);
 
     const scalar d1 = normal_ & (position - coordSys_.origin());
@@ -636,12 +634,12 @@ void Foam::ParticleCollector<CloudType>::postMove
     {
         case mtPolygon:
         {
-            faceI = collectParcelPolygon(p.position(), p.U());
+            faceI = collectParcelPolygon(p.position(), p.U(), dt);
             break;
         }
         case mtConcentricCircle:
         {
-            faceI = collectParcelConcentricCircles(p.position(), p.U());
+            faceI = collectParcelConcentricCircles(p.position(), p.U(), dt);
             break;
         }
         default:
diff --git a/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.H b/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.H
index 29bb8ff95b..71e65fe6c7 100644
--- a/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.H
+++ b/src/lagrangian/intermediate/submodels/CloudFunctionObjects/ParticleCollector/ParticleCollector.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -170,14 +170,16 @@ private:
         label collectParcelPolygon
         (
             const point& position,
-            const vector& U
+            const vector& U,
+            const scalar dt
         ) const;
 
         //- Collect parcels in concentric circle collectors
         label collectParcelConcentricCircles
         (
             const point& position,
-            const vector& U
+            const vector& U,
+            const scalar dt
         ) const;