diff --git a/src/macfont.m b/src/macfont.m
index 42ebfd3d6b7..7f153e13045 100644
--- a/src/macfont.m
+++ b/src/macfont.m
@@ -2994,7 +2994,7 @@ So we use CTFontDescriptorCreateMatchingFontDescriptor (no
 
       if (NILP (lglyph))
         {
-          lglyph = Fmake_vector (make_number (LGLYPH_SIZE), Qnil);
+          lglyph = LGLYPH_NEW ();
           LGSTRING_SET_GLYPH (lgstring, i, lglyph);
         }