diff --git a/railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt b/railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt
index 5e0ab250eb53f..9d9f0d9ceb661 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt
+++ b/railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt
@@ -26,9 +26,7 @@ Rails.application.configure do
 
     <%- end -%>
     config.cache_store = :memory_store
-    config.public_file_server.headers = {
-      "Cache-Control" => "public, max-age=#{2.days.to_i}"
-    }
+    config.public_file_server.headers = { "Cache-Control" => "public, max-age=#{2.days.to_i}" }
   else
     config.action_controller.perform_caching = false
 
diff --git a/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt b/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
index 5737d2872c120..3fed28b706582 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
+++ b/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
@@ -18,9 +18,7 @@ Rails.application.configure do
   config.eager_load = ENV["CI"].present?
 
   # Configure public file server for tests with Cache-Control for performance.
-  config.public_file_server.headers = {
-    "Cache-Control" => "public, max-age=#{1.hour.to_i}"
-  }
+  config.public_file_server.headers = { "Cache-Control" => "public, max-age=#{1.hour.to_i}" }
 
   # Show full error reports and disable caching.
   config.consider_all_requests_local = true