diff --git a/lib/gollum/markup.rb b/lib/gollum/markup.rb
index 236c0fc2..5f2adf7e 100644
--- a/lib/gollum/markup.rb
+++ b/lib/gollum/markup.rb
@@ -316,7 +316,7 @@ module Gollum
               %{<a class="internal #{presence}" href="#{link}#{extra}">#{name}</a>}
             end
       if tag && no_follow
-        tag.sub! /^<a/, '<a ref="nofollow"'
+        tag.sub! /^<a/, '<a rel="nofollow"'
       end
       tag
     end