diff --git a/controls/sshd_spec.rb b/controls/sshd_spec.rb
index 1cbb706..1631bf4 100644
--- a/controls/sshd_spec.rb
+++ b/controls/sshd_spec.rb
@@ -139,7 +139,9 @@
   title 'Server: Specify ListenAddress'
   desc "Limit the SSH server to listen to a specific address. Don't let it listen on all interfaces to avoid logins from unexpected sources."
   describe sshd_config(sshd_custom_path + '/sshd_config') do
-    its('ListenAddress') { should match(/.*/) }
+    its('ListenAddress') { should_not eq nil }
+    its('ListenAddress') { should_not match(/^\s*$/) }
+    its('ListenAddress') { should_not eq [] }
   end
 end