diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index b6be89b0a..03b6224eb 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -59,7 +59,6 @@ Layout/EmptyLines:
 # SupportedStyles: around, only_before
 Layout/EmptyLinesAroundAccessModifier:
   Exclude:
-    - 'app/controllers/previews_controller.rb'
     - 'config/initializers/10-patches.rb'
     - 'lib/redmine/syntax_highlighting.rb'
 
diff --git a/app/controllers/previews_controller.rb b/app/controllers/previews_controller.rb
index e431ab0de..f1ef5fab0 100644
--- a/app/controllers/previews_controller.rb
+++ b/app/controllers/previews_controller.rb
@@ -42,6 +42,7 @@ class PreviewsController < ApplicationController
     @text = params[:text] ? params[:text] : nil
     render :partial => 'common/preview'
   end
+
   private
 
   def find_project