diff --git a/phpBB/includes/functions_content.php b/phpBB/includes/functions_content.php
index fd7fc478bd..173ea49acc 100644
--- a/phpBB/includes/functions_content.php
+++ b/phpBB/includes/functions_content.php
@@ -150,7 +150,7 @@ function gen_sort_selects(&$limit_days, &$sort_by_text, &$sort_days, &$sort_key,
 */
 function make_jumpbox($action, $forum_id = false, $select_all = false, $acl_list = false, $force_display = false)
 {
-	global $config, $auth, $template, $user, $db, $phpbb_path_helper;
+	global $config, $auth, $template, $user, $db, $phpbb_path_helper, $phpbb_dispatcher;
 
 	// We only return if the jumpbox is not forced to be displayed (in case it is needed for functionality)
 	if (!$config['load_jumpbox'] && $force_display === false)
@@ -205,20 +205,21 @@ function make_jumpbox($action, $forum_id = false, $select_all = false, $acl_list
 			continue;
 		}
 
+		$tpl_ary = array();
 		if (!$display_jumpbox)
 		{
-			$template->assign_block_vars('jumpbox_forums', array(
+			$tpl_ary[] = array(
 				'FORUM_ID'		=> ($select_all) ? 0 : -1,
 				'FORUM_NAME'	=> ($select_all) ? $user->lang['ALL_FORUMS'] : $user->lang['SELECT_FORUM'],
 				'S_FORUM_COUNT'	=> $iteration,
 				'LINK'			=> $phpbb_path_helper->append_url_params($action, array('f' => $forum_id)),
-			));
+			);
 
 			$iteration++;
 			$display_jumpbox = true;
 		}
 
-		$template->assign_block_vars('jumpbox_forums', array(
+		$tpl_ary[] = array(
 			'FORUM_ID'		=> $row['forum_id'],
 			'FORUM_NAME'	=> $row['forum_name'],
 			'SELECTED'		=> ($row['forum_id'] == $forum_id) ? ' selected="selected"' : '',
@@ -227,7 +228,25 @@ function make_jumpbox($action, $forum_id = false, $select_all = false, $acl_list
 			'S_IS_LINK'		=> ($row['forum_type'] == FORUM_LINK) ? true : false,
 			'S_IS_POST'		=> ($row['forum_type'] == FORUM_POST) ? true : false,
 			'LINK'			=> $phpbb_path_helper->append_url_params($action, array('f' => $row['forum_id'])),
-		));
+		);
+
+		/**
+		 * Modify the jumpbox before it is assigned to the template
+		 *
+		 * @event core.make_jumpbox_modify_tpl_ary
+		 * @var	array	row				The data of the forum
+		 * @var	array	tpl_ary			Template data of the forum
+		 * @since 3.1.10-RC1
+		 */
+		$vars = array(
+			'row',
+			'tpl_ary',
+		);
+		extract($phpbb_dispatcher->trigger_event('core.make_jumpbox_modify_tpl_ary', compact($vars)));
+
+		$template->assign_block_vars_array('jumpbox_forums', $tpl_ary);
+
+		unset($tpl_ary);
 
 		for ($i = 0; $i < $padding; $i++)
 		{