-# graphviz, haiku, img, linkmap, listdirectives, map, more, orphans,
-# pagecount, pagestats, poll, polygen, postsparkline, progress,
-# shortcut, sparkline, table, template, teximg, toc, toggle, version)
+# graphviz, haiku, headinganchors, img, linkmap, listdirectives, map,
+# more, orphans, pagecount, pagestats, poll, polygen, postsparkline,
+# progress, shortcut, sparkline, table, template, teximg, toc, toggle,
+# version)