diff --git a/phpBB/includes/mcp/mcp_topic.php b/phpBB/includes/mcp/mcp_topic.php
index 7dbe7787cb..d5415302c8 100644
--- a/phpBB/includes/mcp/mcp_topic.php
+++ b/phpBB/includes/mcp/mcp_topic.php
@@ -676,7 +676,7 @@ function split_topic($action, $topic_id, $to_forum_id, $subject)
*/
function merge_posts($topic_id, $to_topic_id)
{
- global $db, $template, $user, $phpEx, $phpbb_root_path, $auth;
+ global $db, $template, $user, $phpEx, $phpbb_root_path, $auth, $phpbb_dispatcher;
if (!$to_topic_id)
{
@@ -777,6 +777,20 @@ function merge_posts($topic_id, $to_topic_id)
$redirect = request_var('redirect', "{$phpbb_root_path}viewtopic.$phpEx?f=$to_forum_id&t=$to_topic_id");
$redirect = reapply_sid($redirect);
+ /**
+ * Perform additional actions after merging posts.
+ *
+ * @event core.mcp_topics_merge_posts_after
+ * @var int topic_id The topic ID from which posts are being moved
+ * @var int to_topic_id The topic ID to which posts are being moved
+ * @since 3.1.11-RC1
+ */
+ $vars = array(
+ 'topic_id',
+ 'to_topic_id',
+ );
+ extract($phpbb_dispatcher->trigger_event('core.mcp_topics_merge_posts_after', compact($vars)));
+
meta_refresh(3, $redirect);
trigger_error($user->lang[$success_msg] . '
' . $return_link);
}