diff --git a/core/modules/node/node.api.php b/core/modules/node/node.api.php
index c297818..9202e05 100644
--- a/core/modules/node/node.api.php
+++ b/core/modules/node/node.api.php
@@ -984,6 +984,9 @@ function hook_ranking() {
  *   The node type object that is being created.
  */
 function hook_node_type_insert($info) {
+  if (!empty($info->old_type) && $info->old_type != $info->type) {
+    drupal_set_message(t('Changed the content type from %old-type to %type.'), array('%old-type' => $info->old_type, '%type' => $info->type));
+  }
 }
 
 /**