diff --git a/test/integration/default/controls/package_spec.rb b/test/integration/default/controls/package_spec.rb
index 7deb083..243659d 100644
--- a/test/integration/default/controls/package_spec.rb
+++ b/test/integration/default/controls/package_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 control 'Cron package' do
   title 'should be installed'
 
diff --git a/test/integration/default/controls/service_spec.rb b/test/integration/default/controls/service_spec.rb
index 1d730a9..2ac8f7f 100644
--- a/test/integration/default/controls/service_spec.rb
+++ b/test/integration/default/controls/service_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 control 'Cron service' do
   title 'should be running and enabled'
 
@@ -13,5 +15,4 @@ control 'Cron service' do
     it { should be_enabled }
     it { should be_running }
   end
-
 end