diff --git a/entity_translation.module b/entity_translation.module
index f7ca0ab..ab360b5 100644
--- a/entity_translation.module
+++ b/entity_translation.module
@@ -1291,8 +1291,7 @@ function entity_translation_prepare_element($element, &$form_state) {
       '#entity_translation_source_form' => TRUE,
       '#parents' => $element['#form_parents'],
     );
-    $source_form_state = $form_state;
-    field_attach_form($entity_type, $element['#entity'], $source_form, $source_form_state, $source);
+    field_attach_form($entity_type, $element['#entity'], $source_form, $form_state, $source);
     $source_forms[$build_id][$source][$entity_type][$id] = &$source_form;
   }