diff --git a/bigbluebutton-html5/imports/ui/components/chat/message-list/styles.scss b/bigbluebutton-html5/imports/ui/components/chat/message-list/styles.scss
index e51ec5d7a3f2d91fd1f962bf33e001980324e915..619e1ed0ed6d923e0529ddbcdef4ec215c469f14 100644
--- a/bigbluebutton-html5/imports/ui/components/chat/message-list/styles.scss
+++ b/bigbluebutton-html5/imports/ui/components/chat/message-list/styles.scss
@@ -25,6 +25,7 @@
   margin-right: auto;
   padding-right: var(--md-padding-x);
   padding-top: 0;
+  width: 100%;
   &:after {
     content: "";
     display: block;