diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 89860b55d..9132a2446 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -85,7 +85,6 @@ Layout/CaseIndentation:
     - 'lib/redmine/menu_manager.rb'
     - 'lib/redmine/views/builders.rb'
     - 'test/test_helper.rb'
-    - 'test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb'
 
 # Cop supports --auto-correct.
 Layout/ClosingHeredocIndentation:
diff --git a/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb b/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
index 1c2a597da..df6975799 100644
--- a/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
+++ b/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
@@ -411,7 +411,7 @@ class MercurialAdapterTest < ActiveSupport::TestCase
         nib1 = @adapter.nodes_in_branch(bra, :limit => 1)
         assert_equal 1, nib1.size
         case bra
-          when 'branch (1)[2]&,%.-3_4'
+        when 'branch (1)[2]&,%.-3_4'
             if @adapter.class.client_version_above?([1, 6])
               assert_equal 3, nib0.size
               assert_equal 'afc61e85bde74de930e5846c8451bd55b5bafc9c', nib0[0]
@@ -419,7 +419,7 @@ class MercurialAdapterTest < ActiveSupport::TestCase
               assert_equal 2, nib2.size
               assert_equal '933ca60293d78f7c7979dd123cc0c02431683575', nib2[1]
             end
-          when @branch_char_1
+        when @branch_char_1
             if @adapter.class.client_version_above?([1, 6])
               assert_equal 2, nib0.size
               assert_equal '08ff3227303ec0dfcc818efa8e9cc652fe81859f', nib0[1]