diff --git a/phpBB/viewonline.php b/phpBB/viewonline.php
index 43b5f7f001..69e63faa86 100644
--- a/phpBB/viewonline.php
+++ b/phpBB/viewonline.php
@@ -213,7 +213,7 @@ while ($row = $db->sql_fetchrow($result))
 		continue;
 	}
 
-	preg_match('#^([a-z0-9/_-]+)#i', $row['session_page'], $on_page);
+	preg_match('#^([./\\]*+[a-z0-9/_-]+)#i', $row['session_page'], $on_page);
 	if (!sizeof($on_page))
 	{
 		$on_page[1] = '';