diff --git a/options/index.html b/options/index.html
index 061db95..33e2c4f 100644
--- a/options/index.html
+++ b/options/index.html
@@ -91,6 +91,7 @@
             - Open country select dropdown
             - Execute:
               d="";document.querySelectorAll(".test-adresse-land ul li").forEach(e=>d=d.concat('<option value="',e.dataset.value,'">',e.textContent,'</option>\n'));
+            - Alt. data source: https://shop.deutschepost.de/api/efiliale/fetchHarmonizedDestinations -> json
           -->
           <option value="AFG">Afghanistan</option>
           <option value="ALA">Åland Islands</option>