diff --git a/core/modules/field/field.attach.inc b/core/modules/field/field.attach.inc
index 29ebd3b..1321130 100644
--- a/core/modules/field/field.attach.inc
+++ b/core/modules/field/field.attach.inc
@@ -522,7 +522,7 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
         // Unless a language code suggestion is provided we iterate on all the
         // available language codes.
         $available_langcodes = field_available_languages($entity_type, $field);
-        $langcode = !empty($options['langcode'][$id]) ? $options['langcode'][$id] : $options['langcode'];
+        $langcode = is_array($options['langcode']) && !empty($options['langcode'][$id]) ? $options['langcode'][$id] : $options['langcode'];
         $langcodes = _field_language_suggestion($available_langcodes, $langcode, $field_name);
         foreach ($langcodes as $langcode) {
           $grouped_items[$field_id][$langcode][$id] = isset($entity->{$field_name}[$langcode]) ? $entity->{$field_name}[$langcode] : array();