diff --git a/src/hb-ot-post-table.hh b/src/hb-ot-post-table.hh
index 5f27fd504..f81de37d5 100644
--- a/src/hb-ot-post-table.hh
+++ b/src/hb-ot-post-table.hh
@@ -131,6 +131,7 @@ struct post
     {
       index_to_offset.fini ();
       free (gids_sorted_by_name.get ());
+      hb_blob_destroy (blob);
     }
 
     inline bool get_glyph_name (hb_codepoint_t glyph,