diff --git a/web/modals/threads/subchannels/subchannels-modal.css b/web/modals/threads/subchannels/subchannels-modal.css
--- a/web/modals/threads/subchannels/subchannels-modal.css
+++ b/web/modals/threads/subchannels/subchannels-modal.css
@@ -42,6 +42,7 @@
   text-overflow: ellipsis;
   overflow: hidden;
   white-space: nowrap;
+  max-width: 100%;
 }
 
 div.lastMessage {