diff --git a/src/OT/glyf/Glyph.hh b/src/OT/glyf/Glyph.hh
index f8366ce3a..abd1f82cc 100644
--- a/src/OT/glyf/Glyph.hh
+++ b/src/OT/glyf/Glyph.hh
@@ -228,7 +228,7 @@ struct Glyph
 
     /* Init phantom points */
     if (unlikely (!points.resize (points.length + PHANTOM_COUNT))) return false;
-    hb_array_t<contour_point_t> phantoms = points.sub_array (points.length - PHANTOM_COUNT, PHANTOM_COUNT);
+    hb_array_t<contour_point_t> phantoms = points.as_array ().sub_array (points.length - PHANTOM_COUNT, PHANTOM_COUNT);
     {
       int lsb = 0;
       int h_delta = glyf_accelerator.hmtx->get_leading_bearing_without_var_unscaled (gid, &lsb) ?
@@ -321,7 +321,7 @@ struct Glyph
 	if (all_points.length > HB_GLYF_MAX_POINTS)
 	  return false;
 
-	all_points.extend (comp_points.sub_array (0, comp_points.length - PHANTOM_COUNT));
+	all_points.extend (comp_points.as_array ().sub_array (0, comp_points.length - PHANTOM_COUNT));
 
 	comp_index++;
       }
diff --git a/src/hb-ot-map.cc b/src/hb-ot-map.cc
index 39cc9fed2..2139fd893 100644
--- a/src/hb-ot-map.cc
+++ b/src/hb-ot-map.cc
@@ -343,7 +343,7 @@ hb_ot_map_builder_t::compile (hb_ot_map_t                  &m,
       /* Sort lookups and merge duplicates */
       if (last_num_lookups < m.lookups[table_index].length)
       {
-	m.lookups[table_index].sub_array (last_num_lookups, m.lookups[table_index].length - last_num_lookups).qsort ();
+	m.lookups[table_index].as_array ().sub_array (last_num_lookups, m.lookups[table_index].length - last_num_lookups).qsort ();
 
 	unsigned int j = last_num_lookups;
 	for (unsigned int i = j + 1; i < m.lookups[table_index].length; i++)
diff --git a/src/hb-vector.hh b/src/hb-vector.hh
index b636e1d22..32adbf5cc 100644
--- a/src/hb-vector.hh
+++ b/src/hb-vector.hh
@@ -164,15 +164,6 @@ struct hb_vector_t
   operator   iter_t () const { return   iter (); }
   operator writer_t ()       { return writer (); }
 
-  c_array_t sub_array (unsigned int start_offset, unsigned int count) const
-  { return as_array ().sub_array (start_offset, count); }
-  c_array_t sub_array (unsigned int start_offset, unsigned int *count = nullptr /* IN/OUT */) const
-  { return as_array ().sub_array (start_offset, count); }
-  array_t sub_array (unsigned int start_offset, unsigned int count)
-  { return as_array ().sub_array (start_offset, count); }
-  array_t sub_array (unsigned int start_offset, unsigned int *count = nullptr /* IN/OUT */)
-  { return as_array ().sub_array (start_offset, count); }
-
   hb_sorted_array_t<Type> as_sorted_array ()
   { return hb_sorted_array (arrayZ, length); }
   hb_sorted_array_t<const Type> as_sorted_array () const