diff --git a/src/views/partials/chats/parent.tpl b/src/views/partials/chats/parent.tpl
index 2d2e66bf3b..68f91414c5 100644
--- a/src/views/partials/chats/parent.tpl
+++ b/src/views/partials/chats/parent.tpl
@@ -4,7 +4,7 @@
 			<div><i class="fa fa-sm fa-reply opacity-50"></i></div>
 			<div class="d-flex flex-nowrap gap-1 align-items-center">
 				<a href="{config.relative_path}/user/{messages.parent.user.userslug}" class="text-decoration-none lh-1">{buildAvatar(messages.parent.user, "14px", true, "not-responsive align-middle")}</a>
-				<a class="chat-user fw-semibold" href="{config.relative_path}/user/{messages.parent.user.userslug}">{messages.parent.user.displayname}</a>
+				<a class="chat-user fw-semibold text-truncate" style="max-width: 150px;" href="{config.relative_path}/user/{messages.parent.user.userslug}">{messages.parent.user.displayname}</a>
 			</div>
 			<span class="chat-timestamp text-muted timeago text-nowrap hidden" title="{messages.parent.timestampISO}"></span>
 		</div>
diff --git a/src/views/partials/topic/post-parent.tpl b/src/views/partials/topic/post-parent.tpl
index cabc6bb36c..38f22da616 100644
--- a/src/views/partials/topic/post-parent.tpl
+++ b/src/views/partials/topic/post-parent.tpl
@@ -3,7 +3,7 @@
 		<div><i class="fa fa-fw fa-reply opacity-50"></i></div>
 		<div class="d-flex flex-nowrap gap-1 align-items-center">
 			<a href="{config.relative_path}/user/{./parent.user.userslug}" class="text-decoration-none lh-1">{buildAvatar(./parent.user, "16px", true, "not-responsive align-middle")}</a>
-			<a class="fw-semibold" href="{config.relative_path}/user/{./parent.user.userslug}">{./parent.user.displayname}</a>
+			<a class="fw-semibold text-truncate" style="max-width: 150px;" href="{config.relative_path}/user/{./parent.user.userslug}">{./parent.user.displayname}</a>
 		</div>
 
 		<a href="{config.relative_path}/post/{./parent.pid}" class="text-muted timeago text-nowrap hidden" title="{./parent.timestampISO}"></a>