diff --git a/src/OT/glyf/Glyph.hh b/src/OT/glyf/Glyph.hh
index 57d3e11f9..8ca9350d1 100644
--- a/src/OT/glyf/Glyph.hh
+++ b/src/OT/glyf/Glyph.hh
@@ -439,7 +439,7 @@ struct Glyph
 
 	auto component_coords = coords;
 	if (item.is_reset_unspecified_axes ())
-	  component_coords = hb_array (font->coords, font->num_coords);
+	  component_coords = hb_array<int> ();
 
 	coord_setter_t coord_setter (component_coords);
 	item.set_variations (coord_setter, record_points);
diff --git a/src/hb-array.hh b/src/hb-array.hh
index 17562bc33..e82c08153 100644
--- a/src/hb-array.hh
+++ b/src/hb-array.hh
@@ -304,6 +304,9 @@ struct hb_array_t : hb_iter_with_fallback_t<hb_array_t<Type>, Type&>
   unsigned int backwards_length = 0;
 };
 template <typename T> inline hb_array_t<T>
+hb_array ()
+{ return hb_array_t<T> (); }
+template <typename T> inline hb_array_t<T>
 hb_array (T *array, unsigned int length)
 { return hb_array_t<T> (array, length); }
 template <typename T, unsigned int length_> inline hb_array_t<T>