diff --git a/site-cookbooks/kosmos-postgresql/libraries/helpers.rb b/site-cookbooks/kosmos-postgresql/libraries/helpers.rb
index a3331b6..775977e 100644
--- a/site-cookbooks/kosmos-postgresql/libraries/helpers.rb
+++ b/site-cookbooks/kosmos-postgresql/libraries/helpers.rb
@@ -29,5 +29,11 @@ class Chef
         server_node['ipaddress']
       end
     end
+
+    def postgresql_service_name
+      postgresql_version = "12"
+
+      "postgresql@#{postgresql_version}-main"
+    end
   end
 end