diff --git a/app/assets/javascripts/discourse/widgets/topic-map.js.es6 b/app/assets/javascripts/discourse/widgets/topic-map.js.es6
index 7d4c89c0b39..c489eb7ec27 100644
--- a/app/assets/javascripts/discourse/widgets/topic-map.js.es6
+++ b/app/assets/javascripts/discourse/widgets/topic-map.js.es6
@@ -160,7 +160,8 @@ createWidget('topic-map-expanded', {
           const domain = l.domain;
           if (domain && domain.length) {
             const s = domain.split('.');
-            host = h('span.domain', s[s.length-2] + "." + s[s.length-1]);
+            if (s[0] === 'www') s.shift();
+            host = h('span.domain', s.join('.'));
           }
         }