diff --git a/lib/rubygems_plugin.rb b/lib/rubygems_plugin.rb
index 49c5d44143..6023356a82 100644
--- a/lib/rubygems_plugin.rb
+++ b/lib/rubygems_plugin.rb
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-# frozen_string_literal: true
 require 'rubygems/user_interaction'
 require 'fileutils'
 require_relative './rdoc'