diff --git a/phpBB/adm/style/acp_update.html b/phpBB/adm/style/acp_update.html
index a87366a78b..a087dc914a 100644
--- a/phpBB/adm/style/acp_update.html
+++ b/phpBB/adm/style/acp_update.html
@@ -19,7 +19,7 @@
 	<!-- ENDIF -->
 
 	<!-- IF NEXT_FEATURE_VERSION -->
-		<div class="errorbox">
+		<div class="errorbox notice">
 			<p>{UPGRADE_INSTRUCTIONS}</p>
 		</div>
 	<!-- ENDIF -->