diff --git a/src/DataObject/Data/Adapter/LocalizedFieldsAdapter.php b/src/DataObject/Data/Adapter/LocalizedFieldsAdapter.php
index 60bea682..ac48fd36 100644
--- a/src/DataObject/Data/Adapter/LocalizedFieldsAdapter.php
+++ b/src/DataObject/Data/Adapter/LocalizedFieldsAdapter.php
@@ -112,7 +112,7 @@ public function normalize(
 
         $value->loadLazyData();
         $originalValue = $fieldDefinition->normalize($value);
-        if (empty($originalValue)) {
+        if ($originalValue === null) {
             return null;
         }
         $languages = array_keys($originalValue);