diff --git a/core/modules/field/field.attach.inc b/core/modules/field/field.attach.inc
index ea4d00f..2bfb936 100644
--- a/core/modules/field/field.attach.inc
+++ b/core/modules/field/field.attach.inc
@@ -510,8 +510,7 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
       $field_id = $instance['field_id'];
       $field_name = $instance['field_name'];
       $field = field_info_field_by_id($field_id);
-      $function = $options['default'] ? 'field_default_' . $op : $field['module'] . '_field_' . $op;
-      if (function_exists($function)) {
+      if (function_exists($options['default'] ? 'field_default_' . $op : $field['module'] . '_field_' . $op)) {
         // Add the field to the list of fields to invoke the hook on.
         if (!isset($fields[$field_id])) {
           $fields[$field_id] = $field;
@@ -543,6 +542,7 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
   // For each field, invoke the field hook and collect results.
   foreach ($fields as $field_id => $field) {
     $field_name = $field['field_name'];
+    $function = $options['default'] ? 'field_default_' . $op : $field['module'] . '_field_' . $op;
     // Iterate over all the field translations.
     foreach ($grouped_items[$field_id] as $langcode => &$items) {
       $entities = $grouped_entities[$field_id][$langcode];