diff --git a/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransform.C b/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransform.C
index d0a2703a89e88ab17b9487d43d1bee3eeb2e0c2b..3bcd500d04cdab78995873cd180db3b7d9508448 100644
--- a/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransform.C
+++ b/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransform.C
@@ -269,9 +269,9 @@ void Foam::globalIndexAndTransform::determineTransformPermutations()
         // Invert the ternary index encoding using repeated division by
         // three
 
-        for (label b = 0; b < transforms_.size(); b++)
+        forAll(transforms_, b)
         {
-            label w = (transformIndex % 3) - 1;
+            const label w = (transformIndex % 3) - 1;
 
             transformIndex /= 3;
 
diff --git a/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransformI.H b/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransformI.H
index da46fe08fe5b66f1fcb58bdd561356d27823a37c..fe2a6034a7ca94db4126b52ddbb0c8c01b399d4b 100644
--- a/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransformI.H
+++ b/src/lagrangian/basic/InteractionLists/globalIndexAndTransform/globalIndexAndTransformI.H
@@ -49,7 +49,7 @@ Foam::label Foam::globalIndexAndTransform::encodeTransformIndex
 
     label w = 1;
 
-    for (label b = 0; b < transforms_.size(); b++)
+    forAll(transforms_, b)
     {
         if (mag(permutationIndices[b]) > 1)
         {