diff --git a/include/ws_functions/pwg.tags.php b/include/ws_functions/pwg.tags.php
index 6ca23bb9a..877c4ba30 100644
--- a/include/ws_functions/pwg.tags.php
+++ b/include/ws_functions/pwg.tags.php
@@ -508,6 +508,7 @@ SELECT image_id
 
   include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
 
+  trigger_notify('merge_tags', $params['destination_tag_id'], $merge_tag);
   delete_tags($merge_tag);
 
   $image_in_merged = array_merge($image_in_dest, $image_to_add);
diff --git a/tools/triggers_list.php b/tools/triggers_list.php
index b2d52063a..14b21cbfc 100644
--- a/tools/triggers_list.php
+++ b/tools/triggers_list.php
@@ -101,6 +101,12 @@ array(
   'vars' => array('array', 'tag_ids'),
   'files' => array('admin\include\functions.inc.php (delete_tags)')
 ),
+array(
+  'name' => 'merge_tags',
+  'type' => 'trigger_notify',
+  'vars' => array('array', 'destination_tag_id', 'array', 'merge_tag'),
+  'files' => array('admin\include\ws_functions/pwg.tags.php (merge_tags)')
+),
 array(
   'name' => 'delete_user',
   'type' => 'trigger_notify',