diff --git a/src/hb-subset.h b/src/hb-subset.h
index 77536650e..4b0b79303 100644
--- a/src/hb-subset.h
+++ b/src/hb-subset.h
@@ -132,6 +132,21 @@ hb_subset_input_unicode_set (hb_subset_input_t *input);
 HB_EXTERN hb_set_t *
 hb_subset_input_glyph_set (hb_subset_input_t *input);
 
+HB_EXTERN hb_set_t *
+hb_subset_input_nameid_set (hb_subset_input_t *input);
+
+HB_EXTERN hb_set_t *
+hb_subset_input_namelangid_set (hb_subset_input_t *input);
+
+HB_EXTERN hb_set_t *
+hb_subset_input_layout_features_set (hb_subset_input_t *input);
+
+HB_EXTERN hb_set_t *
+hb_subset_input_no_subset_tables_set (hb_subset_input_t *input);
+
+HB_EXTERN hb_set_t *
+hb_subset_input_drop_tables_set (hb_subset_input_t *input);
+
 HB_EXTERN hb_set_t *
 hb_subset_input_set (hb_subset_input_t *input, hb_subset_sets_t set_type);