diff --git a/src/Model/Common/LocalizedEnumCollection.php b/src/Model/Common/LocalizedEnumCollection.php
index 349e900584..c9ab96c3cf 100644
--- a/src/Model/Common/LocalizedEnumCollection.php
+++ b/src/Model/Common/LocalizedEnumCollection.php
@@ -21,7 +21,7 @@ class LocalizedEnumCollection extends Collection
 
     protected function indexRow($offset, $row)
     {
-        if ($row instanceof Enum) {
+        if ($row instanceof LocalizedEnum) {
             $key = $row->getKey();
         } else {
             $key = $row[static::KEY];