diff --git a/applications/utilities/mesh/generation/snappyHexMesh/snappyHexMeshDict b/applications/utilities/mesh/generation/snappyHexMesh/snappyHexMeshDict
index 671a770c0ba03440a449a96c9afbfac4f007cc1e..96952c6d0ba39946ac4e4fb583c8603bee3a6ea7 100644
--- a/applications/utilities/mesh/generation/snappyHexMesh/snappyHexMeshDict
+++ b/applications/utilities/mesh/generation/snappyHexMesh/snappyHexMeshDict
@@ -586,6 +586,10 @@ addLayersControls
         //        maxY
         //    );
         //}
+        // Note that e.g. displacementLaplacian needs entries in
+        // fvSchemes, fvSolution. Also specify a minIter > 1 when solving
+        // cellDisplacement since otherwise solution might not be sufficiently
+        // accurate on points.
 
 
     // Medial axis analysis (for use with default displacementMedialAxis)