diff --git a/src/lagrangian/intermediate/submodels/Kinematic/CollisionModel/PairCollision/PairCollision.C b/src/lagrangian/intermediate/submodels/Kinematic/CollisionModel/PairCollision/PairCollision.C
index d5e459ddc0..3c9c2fb43f 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/CollisionModel/PairCollision/PairCollision.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/CollisionModel/PairCollision/PairCollision.C
@@ -661,10 +661,10 @@ void Foam::PairCollision<CloudType>::collide()
 {
     preInteraction();
 
-    parcelInteraction();
-
     wallInteraction();
 
+    parcelInteraction();
+
     postInteraction();
 }