diff --git a/admin/admin_log.php b/admin/admin_log.php
index 8b631c509..976b0ac54 100644
--- a/admin/admin_log.php
+++ b/admin/admin_log.php
@@ -225,6 +225,7 @@ if ($log_rowset) {
             case $log_type['mod_topic_unlock']:
             case $log_type['mod_topic_set_downloaded']:
             case $log_type['mod_topic_unset_downloaded']:
+            case $log_type['mod_topic_renamed']:
             case $log_type['mod_post_delete']:
             case $log_type['mod_post_pin']:
             case $log_type['mod_post_unpin']:
diff --git a/library/ajax/mod_action.php b/library/ajax/mod_action.php
index b6b3da9b8..9de6f8f19 100644
--- a/library/ajax/mod_action.php
+++ b/library/ajax/mod_action.php
@@ -11,7 +11,7 @@ if (!defined('IN_AJAX')) {
     die(basename(__FILE__));
 }
 
-global $userdata, $bb_cfg, $lang, $datastore;
+global $userdata, $bb_cfg, $lang, $datastore, $log_action;
 
 $mode = (string)$this->request['mode'];
 
@@ -36,8 +36,8 @@ switch ($mode) {
 
     case 'edit_topic_title':
         $topic_id = (int)$this->request['topic_id'];
-        $topic_title = (string)$this->request['topic_title'];
-        $new_title = clean_title($topic_title);
+        $old_title = get_topic_title($topic_id);
+        $new_title = clean_title((string)$this->request['topic_title']);
 
         if (!$topic_id) {
             $this->ajax_die($lang['INVALID_TOPIC_ID']);
@@ -68,6 +68,14 @@ switch ($mode) {
             $datastore->update('network_news');
         }
 
+        // Log action
+        $log_action->mod('mod_topic_renamed', array(
+            'forum_id' => $t_data['forum_id'],
+            'topic_id' => $topic_id,
+            'topic_title' => $old_title,
+            'topic_title_new' => $new_title,
+        ));
+
         $this->response['topic_id'] = $topic_id;
         $this->response['topic_title'] = $new_title;
         break;
diff --git a/library/language/source/main.php b/library/language/source/main.php
index 500a20eed..1f940472f 100644
--- a/library/language/source/main.php
+++ b/library/language/source/main.php
@@ -2552,6 +2552,7 @@ $lang['LOG_ACTION']['LOG_TYPE'] = array(
     'mod_topic_split' => 'Topic:<br /> <b>split</b>',
     'mod_topic_set_downloaded' => 'Topic:<br /> <b>set downloaded</b>',
     'mod_topic_unset_downloaded' => 'Topic:<br /> <b>unset downloaded</b>',
+    'mod_topic_renamed' => 'Topic:<br /> <b>renamed</b>',
     'mod_post_delete' => 'Post:<br /> <b>deleted</b>',
     'mod_post_pin' => 'Post:<br /> <b>pinned</b>',
     'mod_post_unpin' => 'Post:<br /> <b>unpinned</b>',
diff --git a/src/Legacy/LogAction.php b/src/Legacy/LogAction.php
index a9b1df22e..766d17e3c 100644
--- a/src/Legacy/LogAction.php
+++ b/src/Legacy/LogAction.php
@@ -22,13 +22,14 @@ class LogAction
         'mod_topic_unlock' => 4,
         'mod_topic_set_downloaded' => 5,
         'mod_topic_unset_downloaded' => 6,
-        'mod_post_delete' => 7,
-        'mod_post_pin' => 8,
-        'mod_post_unpin' => 9,
-        'mod_topic_split' => 10,
-        'adm_user_delete' => 11,
-        'adm_user_ban' => 12,
-        'adm_user_unban' => 13,
+        'mod_topic_renamed' => 7,
+        'mod_post_delete' => 8,
+        'mod_post_pin' => 9,
+        'mod_post_unpin' => 10,
+        'mod_topic_split' => 11,
+        'adm_user_delete' => 12,
+        'adm_user_ban' => 13,
+        'adm_user_unban' => 14,
     ];
     public $log_type_select = [];
     public $log_disabled = false;