diff --git a/.rubocop.yml b/.rubocop.yml
index b21013dba9..f1107acb93 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -92,6 +92,7 @@ Style/FrozenStringLiteralComment:
     - 'actionmailer/**/*'
     - 'actionview/**/*'
     - 'actionpack/**/*'
+    - 'guides/**/*'
   Exclude:
     - 'actionview/test/**/*.builder'
     - 'actionview/test/**/*.ruby'
diff --git a/guides/Rakefile b/guides/Rakefile
index 3a6f10040f..84e18e0972 100644
--- a/guides/Rakefile
+++ b/guides/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 namespace :guides do
   desc 'Generate guides (for authors), use ONLY=foo to process just "foo.md"'
   task generate: "generate:html"
diff --git a/guides/bug_report_templates/action_controller_gem.rb b/guides/bug_report_templates/action_controller_gem.rb
index 8b7aa893fd..4d8d8db3e5 100644
--- a/guides/bug_report_templates/action_controller_gem.rb
+++ b/guides/bug_report_templates/action_controller_gem.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/action_controller_master.rb b/guides/bug_report_templates/action_controller_master.rb
index 3dd66c95ec..1f862e07da 100644
--- a/guides/bug_report_templates/action_controller_master.rb
+++ b/guides/bug_report_templates/action_controller_master.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_job_gem.rb b/guides/bug_report_templates/active_job_gem.rb
index 252b270a0c..af777a86ef 100644
--- a/guides/bug_report_templates/active_job_gem.rb
+++ b/guides/bug_report_templates/active_job_gem.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_job_master.rb b/guides/bug_report_templates/active_job_master.rb
index 7591470440..39fb3f60a6 100644
--- a/guides/bug_report_templates/active_job_master.rb
+++ b/guides/bug_report_templates/active_job_master.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_record_gem.rb b/guides/bug_report_templates/active_record_gem.rb
index 61d4e8d395..168e2dcc66 100644
--- a/guides/bug_report_templates/active_record_gem.rb
+++ b/guides/bug_report_templates/active_record_gem.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_record_master.rb b/guides/bug_report_templates/active_record_master.rb
index 8bbc1ef19e..cbd2cff2b8 100644
--- a/guides/bug_report_templates/active_record_master.rb
+++ b/guides/bug_report_templates/active_record_master.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_record_migrations_gem.rb b/guides/bug_report_templates/active_record_migrations_gem.rb
index 00ba3c1cd6..b931ed0beb 100644
--- a/guides/bug_report_templates/active_record_migrations_gem.rb
+++ b/guides/bug_report_templates/active_record_migrations_gem.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/active_record_migrations_master.rb b/guides/bug_report_templates/active_record_migrations_master.rb
index 52c9028b0f..2c009c0563 100644
--- a/guides/bug_report_templates/active_record_migrations_master.rb
+++ b/guides/bug_report_templates/active_record_migrations_master.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/benchmark.rb b/guides/bug_report_templates/benchmark.rb
index a0b541d012..d0f5a634bc 100644
--- a/guides/bug_report_templates/benchmark.rb
+++ b/guides/bug_report_templates/benchmark.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/generic_gem.rb b/guides/bug_report_templates/generic_gem.rb
index 4dcd04ea27..c990bda005 100644
--- a/guides/bug_report_templates/generic_gem.rb
+++ b/guides/bug_report_templates/generic_gem.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/bug_report_templates/generic_master.rb b/guides/bug_report_templates/generic_master.rb
index ed45726e92..1a9b99b624 100644
--- a/guides/bug_report_templates/generic_master.rb
+++ b/guides/bug_report_templates/generic_master.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require "bundler/inline"
 rescue LoadError => e
diff --git a/guides/rails_guides.rb b/guides/rails_guides.rb
index 0f611c8f2b..f2d4d6f647 100644
--- a/guides/rails_guides.rb
+++ b/guides/rails_guides.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 $:.unshift __dir__
 
 as_lib = File.expand_path("../activesupport/lib", __dir__)
diff --git a/guides/rails_guides/generator.rb b/guides/rails_guides/generator.rb
index 35f014747c..7205f37be7 100644
--- a/guides/rails_guides/generator.rb
+++ b/guides/rails_guides/generator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "set"
 require "fileutils"
 
diff --git a/guides/rails_guides/helpers.rb b/guides/rails_guides/helpers.rb
index 520aa7f7cc..a6970fb90c 100644
--- a/guides/rails_guides/helpers.rb
+++ b/guides/rails_guides/helpers.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "yaml"
 
 module RailsGuides
diff --git a/guides/rails_guides/indexer.rb b/guides/rails_guides/indexer.rb
index c58b6b85a2..c707464cdf 100644
--- a/guides/rails_guides/indexer.rb
+++ b/guides/rails_guides/indexer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support/core_ext/object/blank"
 require "active_support/core_ext/string/inflections"
 
diff --git a/guides/rails_guides/kindle.rb b/guides/rails_guides/kindle.rb
index 9536d0bd3b..87a369a15a 100644
--- a/guides/rails_guides/kindle.rb
+++ b/guides/rails_guides/kindle.rb
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require "kindlerb"
 require "nokogiri"
diff --git a/guides/rails_guides/levenshtein.rb b/guides/rails_guides/levenshtein.rb
index 40c6a5c372..bafa6bfe9d 100644
--- a/guides/rails_guides/levenshtein.rb
+++ b/guides/rails_guides/levenshtein.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsGuides
   module Levenshtein
     # This code is based directly on the Text gem implementation.
diff --git a/guides/rails_guides/markdown.rb b/guides/rails_guides/markdown.rb
index 02d58601c4..84f95eec68 100644
--- a/guides/rails_guides/markdown.rb
+++ b/guides/rails_guides/markdown.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "redcarpet"
 require "nokogiri"
 require "rails_guides/markdown/renderer"
diff --git a/guides/rails_guides/markdown/renderer.rb b/guides/rails_guides/markdown/renderer.rb
index 7ac3d417a4..1f2fe91ea1 100644
--- a/guides/rails_guides/markdown/renderer.rb
+++ b/guides/rails_guides/markdown/renderer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsGuides
   class Markdown
     class Renderer < Redcarpet::Render::HTML
diff --git a/guides/w3c_validator.rb b/guides/w3c_validator.rb
index 4671e040ca..f38b6c2639 100644
--- a/guides/w3c_validator.rb
+++ b/guides/w3c_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # ---------------------------------------------------------------------------
 #
 # This script validates the generated guides against the W3C Validator.