diff --git a/app/javascript/src/styles/common/messages.scss b/app/javascript/src/styles/common/messages.scss
index 2cd10eaa1..ade29c366 100644
--- a/app/javascript/src/styles/common/messages.scss
+++ b/app/javascript/src/styles/common/messages.scss
@@ -14,6 +14,7 @@ div.list-of-messages {
     div.author {
       flex-basis: 12em;
       margin-right: 1em;
+      min-width: 0;
 
       a.message-timestamp {
         font-style: italic;