Fix formatting: ruby->erb. [ci skip]

1 files changed, 3 insertions, 3 deletions

diff --git a/guides/source/caching_with_rails.md b/guides/source/caching_with_rails.md
index e52264f296..a270ec7a7e 100644
--- a/guides/source/caching_with_rails.md
+++ b/guides/source/caching_with_rails.md
@@ -99,14 +99,14 @@ end
 
 This method generates a cache key that depends on all products and can be used in the view:
 
-```ruby
+```erb
 <% cache(cache_key_for_products) do %>
   All available products:
 <% end %>
 ```
 You can also use an Active Record model as the cache key:
 
-```ruby
+```erb
 <% Product.all.each do |p| %>
   <% cache(p) do %>
     <%= link_to p.name, product_url(p) %>
@@ -118,7 +118,7 @@ Behind the scenes, a method called `cache_key` will be invoked on the model and
 
 You can also combine the two schemes which is called "Russian Doll Caching":
 
-```ruby
+```erb
 <% cache(cache_key_for_products) do %>
   All available products:
   <% Product.all.each do |p| %>