diff --git a/_config.yml b/_config.yml
index 09ee50c..9f79814 100644
--- a/_config.yml
+++ b/_config.yml
@@ -55,6 +55,7 @@ tag_map:
 ## http://momentjs.com/docs/#/displaying/format/
 date_format: DD-MM-YY
 time_format: HH:mm:ss
+updated_option: date
 
 # Pagination
 ## Set per_page to 0 to disable pagination