diff --git a/chef/cookbooks/metasploitable/test/linux/readme_app.rb b/chef/cookbooks/metasploitable/test/linux/readme_app.rb
index 483f739..87c4f9e 100644
--- a/chef/cookbooks/metasploitable/test/linux/readme_app.rb
+++ b/chef/cookbooks/metasploitable/test/linux/readme_app.rb
@@ -1,4 +1,8 @@
 describe service('readme_app') do
   it { should be_enabled }
   it { should be_running }
-end
\ No newline at end of file
+end
+
+describe port('3500') do
+  it { should be_listening }
+end