diff --git a/link.module b/link.module
index 241066d..103cde6 100644
--- a/link.module
+++ b/link.module
@@ -1302,7 +1302,7 @@ function link_field_item_property_info() {
  * Implements hook_field_update_instance().
  */
 function link_field_update_instance($instance, $prior_instance) {
-  if (function_exists('i18n_string_update') && $prior_instance['settings']['title_value'] != $instance['settings']['title_value']) {
+  if (function_exists('i18n_string_update') && $instance['widget']['type'] == 'link_field' && $prior_instance['settings']['title_value'] != $instance['settings']['title_value']) {
     $i18n_string_name = "field:{$instance['field_name']}:{$instance['bundle']}:title_value";
     i18n_string_update($i18n_string_name, $instance['settings']['title_value']);
   }