diff --git a/src/hb-ot-shape-complex-default.cc b/src/hb-ot-shape-complex-default.cc
index 1e441fa55..5cf0a1886 100644
--- a/src/hb-ot-shape-complex-default.cc
+++ b/src/hb-ot-shape-complex-default.cc
@@ -40,6 +40,6 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_default =
   NULL, /* decompose */
   NULL, /* compose */
   NULL, /* setup_masks */
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT,
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE,
   true, /* fallback_position */
 };
diff --git a/src/hb-ot-shape-complex-private.hh b/src/hb-ot-shape-complex-private.hh
index 80de4f316..b5da69b3f 100644
--- a/src/hb-ot-shape-complex-private.hh
+++ b/src/hb-ot-shape-complex-private.hh
@@ -44,9 +44,7 @@ enum hb_ot_shape_zero_width_marks_type_t {
 //  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_EARLY,
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE,
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE,
-
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT = HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE
 };
 
 
diff --git a/src/hb-ot-shape-complex-thai.cc b/src/hb-ot-shape-complex-thai.cc
index 6556a3251..bd7c5e142 100644
--- a/src/hb-ot-shape-complex-thai.cc
+++ b/src/hb-ot-shape-complex-thai.cc
@@ -377,6 +377,6 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_thai =
   NULL, /* decompose */
   NULL, /* compose */
   NULL, /* setup_masks */
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT,
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE,
   false,/* fallback_position */
 };
diff --git a/src/hb-ot-shape-complex-tibetan.cc b/src/hb-ot-shape-complex-tibetan.cc
index 9f09287f6..03bcfee33 100644
--- a/src/hb-ot-shape-complex-tibetan.cc
+++ b/src/hb-ot-shape-complex-tibetan.cc
@@ -57,6 +57,6 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_tibetan =
   NULL, /* decompose */
   NULL, /* compose */
   NULL, /* setup_masks */
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT,
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE,
   true, /* fallback_position */
 };