diff --git a/docs/harfbuzz-sections.txt b/docs/harfbuzz-sections.txt
index 254e809b7..885a71a91 100644
--- a/docs/harfbuzz-sections.txt
+++ b/docs/harfbuzz-sections.txt
@@ -416,6 +416,8 @@ hb_font_set_ptem
 hb_font_get_ptem
 hb_font_set_scale
 hb_font_get_scale
+hb_font_get_synthetic_bold
+hb_font_set_synthetic_bold
 hb_font_set_synthetic_slant
 hb_font_get_synthetic_slant
 hb_font_set_variations