1 files changed, 3 insertions, 1 deletions
diff --git a/railties/test/rack_logger_test.rb b/railties/test/rack_logger_test.rb
index 7dd91a2465..e47f30d5b6 100644
--- a/railties/test/rack_logger_test.rb
+++ b/railties/test/rack_logger_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "abstract_unit"
 require "active_support/testing/autorun"
 require "active_support/test_case"
@@ -20,7 +22,7 @@ module Rails
         def development?; false; end
       end
 
-      class Subscriber < Struct.new(:starts, :finishes)
+      Subscriber = Struct.new(:starts, :finishes) do
         def initialize(starts = [], finishes = [])
           super
         end