diff --git a/.mdl_style.rb b/.mdl_style.rb
index ce318172a6eebdc683645c11e5499963f5ca41a5..e9d8d3e8f68e091469349a11eb3ae652698a01f1 100644
--- a/.mdl_style.rb
+++ b/.mdl_style.rb
@@ -4,4 +4,4 @@ all
 # default in next version, remove then
 #   "MD003": { "style": "atx_closed" 
 # rule 'MD007', :indent => 3
-rule 'MD029', :ordered
+rule 'MD029', :style => :ordered