diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 995387a22..39b083ac3 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -76,11 +76,6 @@ Layout/ClosingHeredocIndentation:
 Layout/ClosingParenthesisIndentation:
   Enabled: false
 
-# Cop supports --auto-correct.
-Layout/CommentIndentation:
-  Exclude:
-    - 'test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb'
-
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: leading, trailing
@@ -208,7 +203,6 @@ Layout/MultilineArrayBraceLayout:
     - 'app/helpers/projects_helper.rb'
     - 'app/helpers/settings_helper.rb'
     - 'app/helpers/users_helper.rb'
-    - 'test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb'
 
 # Cop supports --auto-correct.
 Layout/MultilineBlockLayout:
diff --git a/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
index 465bb4711..23d785901 100644
--- a/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
@@ -125,33 +125,40 @@ EXPECTED
   end
 
   STR_WITH_PRE = [
-  # 0
-"# Title
+    # 0
+    <<~STR.chomp,
+      # Title
 
-Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas sed libero.",
-  # 1
-"## Heading 2
+      Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas sed libero.
+    STR
+    # 1
+    <<~STR.chomp,
+      ## Heading 2
 
-~~~ruby
-  def foo
-  end
-~~~
+      ~~~ruby
+        def foo
+        end
+      ~~~
 
-Morbi facilisis accumsan orci non pharetra.
+      Morbi facilisis accumsan orci non pharetra.
 
-```
-Pre Content:
+      ```
+      Pre Content:
 
-## Inside pre
+      ## Inside pre
 
-<tag> inside pre block
+      <tag> inside pre block
 
-Morbi facilisis accumsan orci non pharetra.
-```",
-  # 2
-"### Heading 3
+      Morbi facilisis accumsan orci non pharetra.
+      ```
+    STR
+    # 2
+    <<~STR.chomp,
+      ### Heading 3
 
-Nulla nunc nisi, egestas in ornare vel, posuere ac libero."]
+      Nulla nunc nisi, egestas in ornare vel, posuere ac libero.
+    STR
+  ]
 
   def test_get_section_should_ignore_pre_content
     text = STR_WITH_PRE.join("\n\n")