diff --git a/src/hb-ft-colr.hh b/src/hb-ft-colr.hh
index 7266c4f23..23d8dfa99 100644
--- a/src/hb-ft-colr.hh
+++ b/src/hb-ft-colr.hh
@@ -305,6 +305,9 @@ _hb_ft_paint (hb_ft_paint_context_t *c,
         bool has_clip_box;
         FT_ClipBox clip_box;
         has_clip_box = FT_Get_Color_Glyph_ClipBox (ft_face, paint.u.colr_glyph.glyphID, &clip_box);
+
+	/* The FreeType ClipBox is in scaled coordinates, whereas we need
+	 * unscaled clipbox here. Oh well... */
         has_clip_box = 0;
 
         if (has_clip_box)