diff --git a/lib/abbrev.rb b/lib/abbrev.rb
index 2eac293c30d638..2af01d2eae3801 100644
--- a/lib/abbrev.rb
+++ b/lib/abbrev.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #--
 # Copyright (c) 2001,2003 Akinori MUSHA <knu@iDaemons.org>
 #
diff --git a/test/test_abbrev.rb b/test/test_abbrev.rb
index be9b7d50051154..67287138aa8f91 100644
--- a/test/test_abbrev.rb
+++ b/test/test_abbrev.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require 'test/unit'
 require 'abbrev'