diff --git a/Mesh/meshGFace.cpp b/Mesh/meshGFace.cpp
index 59b3724d76969c0d95284da18de10579789ccbc8..f622c4e8efb9d616fc1d6a9ac56bc96b2039e39a 100644
--- a/Mesh/meshGFace.cpp
+++ b/Mesh/meshGFace.cpp
@@ -1845,6 +1845,8 @@ void orientMeshGFace::operator()(GFace *gf)
     bool ok = true;
     for(int j = 0; j < e->getNumVertices(); j++){
       SPoint2 p;
+      // FIXME: use inexact reparam because some vertices might not be
+      // exactly on the surface after the 3D Delaunay
       bool ok = reparamMeshVertexOnFace(e->getVertex(j), gf, p, false);
       if(!ok) break;
       param += p;