diff --git a/src/mesh/autoMesh/autoHexMesh/refinementSurfaces/refinementSurfaces.H b/src/mesh/autoMesh/autoHexMesh/refinementSurfaces/refinementSurfaces.H
index cee48bbe1f..86767f5731 100644
--- a/src/mesh/autoMesh/autoHexMesh/refinementSurfaces/refinementSurfaces.H
+++ b/src/mesh/autoMesh/autoHexMesh/refinementSurfaces/refinementSurfaces.H
@@ -291,7 +291,7 @@ public:
             (
                 const labelList& surfacesToTest,
                 const pointField& samples,
-                const  scalarField& nearestDistSqr,
+                const scalarField& nearestDistSqr,
                 labelList& hitSurface,
                 labelList& hitRegion
             ) const;