diff --git a/src/foam/meshes/polyMesh/polyMesh.C b/src/foam/meshes/polyMesh/polyMesh.C
index 054113c87..b53e36c0c 100644
--- a/src/foam/meshes/polyMesh/polyMesh.C
+++ b/src/foam/meshes/polyMesh/polyMesh.C
@@ -1267,7 +1267,7 @@ void Foam::polyMesh::setOldPoints
                 "    const pointField& setPoints\n"
                 ")\n"
             )   << "setPoints size " << setPoints.size()
-                << "different from the mesh points size "
+                << " is different from the mesh points size "
                 << allPoints_.size()
                 << abort(FatalError);
     }