diff --git a/core/Migrations/Version30000Date20240429122720.php b/core/Migrations/Version30000Date20240429122720.php
index 1f53aacd66b85..4bfbd86a6c70f 100644
--- a/core/Migrations/Version30000Date20240429122720.php
+++ b/core/Migrations/Version30000Date20240429122720.php
@@ -80,7 +80,7 @@ public function changeSchema(IOutput $output, Closure $schemaClosure, array $opt
 				'default' => '',
 			]);
 			$table->addColumn('identifier', Types::STRING, [
-				'notnull' => true,
+				'notnull' => false,
 				'length' => 255,
 				'default' => '',
 			]);
@@ -95,6 +95,7 @@ public function changeSchema(IOutput $output, Closure $schemaClosure, array $opt
 			]);
 			$table->addColumn('progress', Types::FLOAT, [
 				'notnull' => false,
+				'default' => 0,
 			]);
 			$table->addColumn('error_message', Types::STRING, [
 				'notnull' => false,