diff --git a/guides/source/layouts_and_rendering.md b/guides/source/layouts_and_rendering.md
index bfd1a7c61b..a3b3472701 100644
--- a/guides/source/layouts_and_rendering.md
+++ b/guides/source/layouts_and_rendering.md
@@ -363,7 +363,7 @@ You can use a symbol to defer the choice of layout until a request is processed:
 
 ```ruby
 class ProductsController < ApplicationController
-  layout "products_layout"
+  layout :products_layout
 
   def show
     @product = Product.find(params[:id])