diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 4d2a00f2db..0320230a7d 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -4553,7 +4553,7 @@ function page_header($page_title = '', $display_online_list = true, $item_id = 0
 		foreach ($_EXTRA_URL as $url_param)
 		{
 			$url_param = explode('=', $url_param, 2);
-			$s_hidden_fields[$url_param[0]] = $url_param[1];
+			$s_search_hidden_fields[$url_param[0]] = $url_param[1];
 		}
 	}