diff --git a/field_collection_uuid/field_collection_uuid.module b/field_collection_uuid/field_collection_uuid.module
index 7dcc571..2aadb86 100644
--- a/field_collection_uuid/field_collection_uuid.module
+++ b/field_collection_uuid/field_collection_uuid.module
@@ -41,9 +41,10 @@ function field_collection_field_uuid_load($entity_type, $entity, $field, $instan
 function field_collection_field_uuid_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
   entity_property_uuid_to_id($items, 'field_collection_item', 'value');
   // Update the revision_ids of the field to match the head revisions of the entities.
-  $entity_ids = array_map(function($item) {
-    return $item['value'];
-  }, $items);
+  $entity_ids = array();
+  foreach ($items as $item) {
+    $entity_ids[] = $item['value'];
+  }
 
   $field_collections = entity_load("field_collection_item", $entity_ids);
   foreach ($items as &$item) {