diff --git a/src/hb-ft.c b/src/hb-ft.c
index eecafef38..00a953fb4 100644
--- a/src/hb-ft.c
+++ b/src/hb-ft.c
@@ -162,6 +162,7 @@ hb_ft_face_create (FT_Face           ft_face,
 {
   hb_face_t *face;
 
+  /* TODO: Handle NULL ft_face (in other places too */
   if (ft_face->stream->base != NULL) {
     hb_blob_t *blob;