diff --git a/src/foam/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C b/src/foam/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
index 90d1dc7e3..e4d13a92b 100644
--- a/src/foam/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
+++ b/src/foam/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
@@ -117,7 +117,7 @@ void Foam::coupledPolyPatch::calcTransformTensors
             forwardT_.setSize(0);
             reverseT_.setSize(0);
 
-            separation_ = (nf&(Cr - Cf))*nf;
+            separation_ = (nf & (Cr - Cf))*nf;
 
             // Three situations:
             // - separation is zero. No separation.