diff --git a/.rubocop.yml b/.rubocop.yml
index ea8eee74..954ef823 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -7,6 +7,9 @@ AllCops:
     - 'vendor/bundle/**/*'
     - 'spec/fixtures/**/*'
 
+Layout/LineLength:
+  Max: 120
+
 Lint/UnusedMethodArgument:
   IgnoreEmptyMethods: true
 
@@ -26,9 +29,6 @@ Metrics/BlockLength:
   Exclude:
   - 'spec/**/*.rb'
 
-Metrics/LineLength:
-  Max: 120
-
 Metrics/MethodLength:
   Max: 25
 
diff --git a/spec/i18n_tasks_spec.rb b/spec/i18n_tasks_spec.rb
index 6b596434..793c386a 100644
--- a/spec/i18n_tasks_spec.rb
+++ b/spec/i18n_tasks_spec.rb
@@ -20,7 +20,9 @@
           s.sub(%r{^warning: parser/cur.*?https://github.com/whitequark/parser#compatibility-with-ruby-mri\.\n}m, '')
            .gsub(/^.*warning: constant ::(?:Fixnum|Bignum) is deprecated\n/, '')
         end
-        clean_coverage_logging = ->(s) { s.sub(/(?:\n^|\A)(?:Coverage = |.*Reporting coverage|JSON Coverage report).*(?:$\n|\z)/i, '') }
+        clean_coverage_logging = lambda { |s|
+          s.sub(/(?:\n^|\A)(?:Coverage = |.*Reporting coverage|JSON Coverage report).*(?:$\n|\z)/i, '')
+        }
         [
           proc do
             out, err, status = run.call('bundle exec ../../bin/i18n-tasks')