diff -r 8e85d1db3636 sites/all/modules/contrib/translation_management/icl_content/icl_content.install
--- a/sites/all/modules/contrib/translation_management/icl_content/icl_content.install	Sun Jul 10 23:41:06 2011 +0200
+++ b/sites/all/modules/contrib/translation_management/icl_content/icl_content.install	Sun Jul 10 23:42:29 2011 +0200
@@ -641,11 +641,11 @@
   return $ret;
 }
 
+/**
+ * Implementation of hook_update_N().
+ */
 function icl_content_update_6031() {
-  $ret = array();
-  db_add_index($ret, 'icl_content_status', 'nid', array('nid'));
-  db_add_index($ret, 'icl_content_status', 'rid', array('rid'));
-  db_add_index($ret, 'icl_node', 'nid', array('nid'));
-  return $ret;
+  db_add_index('icl_content_status', 'nid', array('nid'));
+  db_add_index('icl_content_status', 'rid', array('rid'));
+  db_add_index('icl_node', 'nid', array('nid'));
 }
-