diff --git a/plugins/blockquote.rb b/plugins/blockquote.rb
index a0bf12c..f4f57da 100644
--- a/plugins/blockquote.rb
+++ b/plugins/blockquote.rb
@@ -71,7 +71,7 @@ module Jekyll
       else
         "#{quote}<footer>#{author}</footer>"
       end
-      "<blockquote>#{blockquote}</blockquote>"
+      "<blockquote class='citation'>#{blockquote}</blockquote>"
     end
 
     def paragraphize(input)