diff --git a/core/modules/node/node.install b/core/modules/node/node.install
index 02cc7a0..92bf86a 100644
--- a/core/modules/node/node.install
+++ b/core/modules/node/node.install
@@ -172,15 +172,20 @@ function node_schema() {
       ),
     ),
     'indexes' => array(
-      'node_changed' => array('changed'),
-      'node_created' => array('created'),
+      'node_changed'        => array('changed'),
+      'node_created'        => array('created'),
       'node_default_langcode' => array('default_langcode'),
-      'node_langcode' => array('langcode'),
-      'node_frontpage' => array('promote', 'status', 'sticky', 'created'),
-      'node_status_type' => array('status', 'type', 'nid'),
-      'node_title_type' => array('title', array('type', 4)),
-      'node_type' => array(array('type', 4)),
-      'nid' => array('nid'),
+      'node_frontpage'      => array('promote', 'status', 'sticky', 'created'),
+      'node_status_type'    => array('status', 'type', 'nid'),
+      'node_title_type'     => array('title', array('type', 4)),
+      'node_type'           => array(array('type', 4)),
+      'uid'                 => array('uid'),
+      'tnid'                => array('tnid'),
+      'translate'           => array('translate'),
+      'langcode'            => array('langcode'),
+      'nid' 		    => array('nid'),
+    ),
+    'unique keys' => array(
       'vid' => array('vid'),
       'uid' => array('uid'),
     ),