diff --git a/src/OT/glyf/Glyph.hh b/src/OT/glyf/Glyph.hh
index 22887306c..5dec0ea26 100644
--- a/src/OT/glyf/Glyph.hh
+++ b/src/OT/glyf/Glyph.hh
@@ -515,6 +515,7 @@ struct Glyph
 
   hb_bytes_t get_bytes () const { return bytes; }
   glyph_type_t get_type () const { return type; }
+  const GlyphHeader *get_header () const { return header; }
 
   Glyph () : bytes (),
              header (bytes.as<GlyphHeader> ()),
diff --git a/src/OT/glyf/glyf.hh b/src/OT/glyf/glyf.hh
index 7d2522e34..67fb5ff94 100644
--- a/src/OT/glyf/glyf.hh
+++ b/src/OT/glyf/glyf.hh
@@ -346,6 +346,15 @@ struct glyf_accelerator_t
   }
 #endif
 
+  bool get_leading_bearing_without_var_unscaled (hb_codepoint_t gid, bool is_vertical, int *lsb) const
+  {
+    if (unlikely (gid >= num_glyphs)) return false;
+    if (is_vertical) return false; // TODO Humm, what to do here?
+
+    *lsb = glyph_for_gid (gid).get_header ()->xMin;
+    return true;
+  }
+
   public:
   bool get_extents (hb_font_t *font, hb_codepoint_t gid, hb_glyph_extents_t *extents) const
   {
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index 19ae02e28..8fda0b4ac 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -633,20 +633,4 @@ hb_ot_font_set_funcs (hb_font_t *font)
 		     _hb_ot_font_destroy);
 }
 
-#ifndef HB_NO_VAR
-bool
-_glyf_get_leading_bearing_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical,
-					     int *lsb)
-{
-  return font->face->table.glyf->get_leading_bearing_with_var_unscaled (font, glyph, is_vertical, lsb);
-}
-
-unsigned
-_glyf_get_advance_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical)
-{
-  return font->face->table.glyf->get_advance_with_var_unscaled (font, glyph, is_vertical);
-}
-#endif
-
-
 #endif
diff --git a/src/hb-ot-hmtx-table.hh b/src/hb-ot-hmtx-table.hh
index 53a3e2f83..15ac9545f 100644
--- a/src/hb-ot-hmtx-table.hh
+++ b/src/hb-ot-hmtx-table.hh
@@ -50,6 +50,9 @@ _glyf_get_leading_bearing_with_var_unscaled (hb_font_t *font, hb_codepoint_t gly
 HB_INTERNAL unsigned
 _glyf_get_advance_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical);
 
+HB_INTERNAL bool
+_glyf_get_leading_bearing_without_var_unscaled (hb_face_t *face, hb_codepoint_t gid, bool is_vertical, int *lsb);
+
 
 namespace OT {
 
@@ -208,7 +211,8 @@ struct hmtxvmtx
 		  if (!c->plan->old_gid_for_new_gid (_, &old_gid))
 		    return hb_pair (0u, 0);
 		  int lsb = 0;
-		  (void) _mtx.get_leading_bearing_without_var_unscaled (old_gid, &lsb);
+		  if (!_mtx.get_leading_bearing_without_var_unscaled (old_gid, &lsb))
+		    (void) _glyf_get_leading_bearing_without_var_unscaled (c->plan->source, old_gid, !T::is_horizontal, &lsb);
 		  return hb_pair (_mtx.get_advance_without_var_unscaled (old_gid), +lsb);
 		}
 		return mtx_map->get (_);
diff --git a/src/hb-static.cc b/src/hb-static.cc
index 5f647c6ad..31acc0172 100644
--- a/src/hb-static.cc
+++ b/src/hb-static.cc
@@ -36,6 +36,7 @@
 #include "OT/Color/COLR/COLR.hh"
 #include "hb-ot-glyf-table.hh"
 #include "hb-ot-head-table.hh"
+#include "hb-ot-hmtx-table.hh"
 #include "hb-ot-maxp-table.hh"
 
 #ifndef HB_NO_VISIBILITY
@@ -108,4 +109,26 @@ hb_face_t::load_upem () const
 }
 
 
+#ifndef HB_NO_VAR
+bool
+_glyf_get_leading_bearing_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical,
+					     int *lsb)
+{
+  return font->face->table.glyf->get_leading_bearing_with_var_unscaled (font, glyph, is_vertical, lsb);
+}
+
+unsigned
+_glyf_get_advance_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical)
+{
+  return font->face->table.glyf->get_advance_with_var_unscaled (font, glyph, is_vertical);
+}
+#endif
+
+bool
+_glyf_get_leading_bearing_without_var_unscaled (hb_face_t *face, hb_codepoint_t gid, bool is_vertical, int *lsb)
+{
+  return face->table.glyf->get_leading_bearing_without_var_unscaled (gid, is_vertical, lsb);
+}
+
+
 #endif