diff --git a/entity_reference_multiple.module b/entity_reference_multiple.module
index 7b8a52a..172e67d 100644
--- a/entity_reference_multiple.module
+++ b/entity_reference_multiple.module
@@ -307,7 +307,10 @@ function _entity_reference_multiple_build_query($field, $target_type) {
   $query->addMetaData('field', $field);

   // Add the sort option.
-  $query->propertyOrderBy('title');
+  $entity_info = entity_get_info($target_type);
+  if (!empty($entity_info) && !empty($entity_info['entity keys']['label'])) {
+    $query->propertyOrderBy($entity_info['entity keys']['label']);
+  }

   return $query;
 }