diff --git a/src/mesh/blockMesh/blockMesh/blockMeshMergeFast.C b/src/mesh/blockMesh/blockMesh/blockMeshMergeFast.C
index d6d2a2d5f40c28783b2a5c6667247449a9aaad39..077db0b8fd22d0c7120b7a77f9579cd244d85dda 100644
--- a/src/mesh/blockMesh/blockMesh/blockMeshMergeFast.C
+++ b/src/mesh/blockMesh/blockMesh/blockMeshMergeFast.C
@@ -455,6 +455,9 @@ void Foam::blockMesh::calcMergeInfoFast()
                         << " and face "
                         << blockNfacei << " of block " << blockNi
                         << endl
+                        << "    Points: " << blockPpoints[blockPpointi]
+                        << " " << blockNpoints[blockNpointi]
+                        << endl
                         << "    This may be due to inconsistent grading."
                         << exit(FatalError);
                 }