diff --git a/phpBB/styles/prosilver/template/ucp_notifications.html b/phpBB/styles/prosilver/template/ucp_notifications.html
index 717f07528c..0bee0e5fd3 100644
--- a/phpBB/styles/prosilver/template/ucp_notifications.html
+++ b/phpBB/styles/prosilver/template/ucp_notifications.html
@@ -52,7 +52,7 @@
 					</div>
 				</div>
 
-			<div class="notification_list">
+			<div class="notification-list">
 				<ul class="topiclist two-columns">
 					<li class="header">
 						<dl>