diff --git a/src/lib/Repository/Validator/VersionValidator.php b/src/lib/Repository/Validator/VersionValidator.php
index 5971c1b4cb..c9e5580209 100644
--- a/src/lib/Repository/Validator/VersionValidator.php
+++ b/src/lib/Repository/Validator/VersionValidator.php
@@ -73,7 +73,7 @@ public function validate(
 
                 if ($fieldType->isEmptyValue($fieldValue)) {
                     if ($fieldDefinition->isRequired) {
-                        $allFieldErrors[$fieldDefinition->identifier][$languageCode] = new ValidationError(
+                        $allFieldErrors[$fieldDefinition->id][$languageCode] = new ValidationError(
                             "Value for required field definition '%identifier%' with language '%languageCode%' is empty",
                             null,
                             ['%identifier%' => $fieldDefinition->identifier, '%languageCode%' => $languageCode],