diff --git a/mobile/lib/utils/openapi_patching.dart b/mobile/lib/utils/openapi_patching.dart
index 3e45390198..33199d5225 100644
--- a/mobile/lib/utils/openapi_patching.dart
+++ b/mobile/lib/utils/openapi_patching.dart
@@ -28,6 +28,7 @@ dynamic upgradeDto(dynamic value, String targetType) {
     case 'AssetResponseDto':
       if (value is Map) {
         addDefault(value, 'visibility', 'timeline');
+        addDefault(value, 'createdAt', DateTime.now().toIso8601String());
       }
       break;
     case 'UserAdminResponseDto':