diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index a1682a5f9..e78e1524e 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -133,6 +133,9 @@ _hb_ot_layout_create (hb_face_t *face)
       || (1330 == gdef_len && 57938 == gpos_len && 109904 == gsub_len)
       /* 91fcc10cf15e012d27571e075b3b4dfe31754a8a padauk-3.0/Padauk-bookbold.ttf */
       || (1330 == gdef_len && 58972 == gpos_len && 109904 == gsub_len)
+      /* sha1sum: c26e41d567ed821bed997e937bc0c41435689e85  Padauk.ttf
+       *  "Padauk Regular" "Version 2.5", see https://crbug.com/681813 */
+      || (1004 == gdef_len && 14836 == gpos_len && 59092 == gsub_len)
     )
     {
       /* Many versions of Tahoma have bad GDEF tables that incorrectly classify some spacing marks