diff --git a/test/json/json_encoding_test.rb b/test/json/json_encoding_test.rb
index ac485e2ac1..be87f3c3d6 100644
--- a/test/json/json_encoding_test.rb
+++ b/test/json/json_encoding_test.rb
@@ -1,4 +1,4 @@
-#frozen_string_literal: false
+# frozen_string_literal: false
 require_relative 'test_helper'
 
 class JSONEncodingTest < Test::Unit::TestCase