diff --git a/phpBB/install/database_update.php b/phpBB/install/database_update.php
index 85b84d0b38..628f51f1eb 100644
--- a/phpBB/install/database_update.php
+++ b/phpBB/install/database_update.php
@@ -459,6 +459,7 @@ header('Content-type: text/html; charset=UTF-8');
 	<div id="page-header">&nbsp;</div>
 
 	<div id="page-body">
+		<div id="acp">
 		<div class="panel">
 			<span class="corners-top"><span></span></span>
 				<div id="content">
@@ -866,6 +867,7 @@ $cache->purge();
 				</div>
 			<span class="corners-bottom"><span></span></span>
 		</div>
+		</div>
 	</div>
 	
 	<div id="page-footer">