diff --git a/_config.yml b/_config.yml
index 06e30b87..821085f7 100644
--- a/_config.yml
+++ b/_config.yml
@@ -67,7 +67,7 @@ timezone: America/New_York # http://en.wikipedia.org/wiki/List_of_tz_database_ti
 kramdown:
   input: GFM
   hard_wrap: false
-  auto_ids: rue
+  auto_ids: true
   footnote_nr: 1
   entity_output: as_char
   toc_levels: 1..6