diff --git a/app/templates/macros/topics.html b/app/templates/macros/topics.html
index 5ef224ab..8316a70c 100644
--- a/app/templates/macros/topics.html
+++ b/app/templates/macros/topics.html
@@ -37,7 +37,7 @@
 					</a>
 				{% endif %}
 				{% if topic.link %}
-					<a class="btn btn-info" href="{{ topic.link }}">{{ topic.link | domain }}</a>
+					<a class="btn btn-info" href="{{ topic.link }}">{{ topic.link | domain | truncate(18) }}</a>
 				{% endif %}
 			</td>
 		</tr>