diff --git a/test/integration/default/controls/base.rb b/test/integration/default/controls/base.rb
index 50dddde..7211aae 100644
--- a/test/integration/default/controls/base.rb
+++ b/test/integration/default/controls/base.rb
@@ -1,4 +1,4 @@
-# encoding: utf-8
+# frozen_string_literal: true
 
 title 'Test logrotate installation'
 
diff --git a/test/integration/default/controls/jobs.rb b/test/integration/default/controls/jobs.rb
index b4edcce..7e1c297 100644
--- a/test/integration/default/controls/jobs.rb
+++ b/test/integration/default/controls/jobs.rb
@@ -1,4 +1,4 @@
-# encoding: utf-8
+# frozen_string_literal: true
 
 title 'Test logrotate jobs configuration'
 
@@ -66,5 +66,4 @@ describe file('/etc/logrotate.d/nginx') do
   its('content') { should include '  fi \\' }
   its('content') { should include 'postrotate' }
   its('content') { should include '  invoke-rc.d nginx rotate >/dev/null 2>&1' }
-
 end