diff --git a/app/assets/stylesheets/common/base/topic-post.scss b/app/assets/stylesheets/common/base/topic-post.scss
index 1f706e20594..d71315f7ce5 100644
--- a/app/assets/stylesheets/common/base/topic-post.scss
+++ b/app/assets/stylesheets/common/base/topic-post.scss
@@ -15,6 +15,8 @@
 }
 
 .names {
+  flex: 1 1 auto;
+  overflow: hidden;
   span.first {
     font-weight: bold;
   }
@@ -23,7 +25,6 @@
     font-size: $font-0;
     margin-right: 8px;
     display: inline-block;
-    max-width: 280px;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;