4 files changed, 9 insertions, 1 deletions
diff --git a/railties/lib/rails/engine/commands.rb b/railties/lib/rails/engine/commands.rb
index b9ef63243a..05218640c6 100644
--- a/railties/lib/rails/engine/commands.rb
+++ b/railties/lib/rails/engine/commands.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 unless defined?(APP_PATH)
   if File.exist?(File.expand_path("test/dummy/config/application.rb", ENGINE_ROOT))
     APP_PATH = File.expand_path("test/dummy/config/application", ENGINE_ROOT)
diff --git a/railties/lib/rails/engine/configuration.rb b/railties/lib/rails/engine/configuration.rb
index 0c40173c38..6bf0406b21 100644
--- a/railties/lib/rails/engine/configuration.rb
+++ b/railties/lib/rails/engine/configuration.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "rails/railtie/configuration"
 
 module Rails
diff --git a/railties/lib/rails/engine/railties.rb b/railties/lib/rails/engine/railties.rb
index 9969a1475d..052b74c880 100644
--- a/railties/lib/rails/engine/railties.rb
+++ b/railties/lib/rails/engine/railties.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Rails
   class Engine < Railtie
     class Railties
diff --git a/railties/lib/rails/engine/updater.rb b/railties/lib/rails/engine/updater.rb
index 2ecf994a5c..be7a47124a 100644
--- a/railties/lib/rails/engine/updater.rb
+++ b/railties/lib/rails/engine/updater.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "rails/generators"
 require "rails/generators/rails/plugin/plugin_generator"
 
@@ -7,7 +9,7 @@ module Rails
       class << self
         def generator
           @generator ||= Rails::Generators::PluginGenerator.new ["plugin"],
-            { engine: true }, destination_root: ENGINE_ROOT
+            { engine: true }, { destination_root: ENGINE_ROOT }
         end
 
         def run(action)