diff --git a/lib/api/eh.dart b/lib/api/eh.dart
index 33e354e..1f16d61 100644
--- a/lib/api/eh.dart
+++ b/lib/api/eh.dart
@@ -28,7 +28,7 @@ class GalleryMetadataSingle {
   const GalleryMetadataSingle({
     required this.gid,
     required this.token,
-    required this.archiverKey,
+    this.archiverKey,
     required this.title,
     required this.titleJpn,
     required this.category,
@@ -50,7 +50,7 @@ class GalleryMetadataSingle {
   final int gid;
   final String token;
   @JsonKey(name: 'archiver_key')
-  final String archiverKey;
+  final String? archiverKey;
   final String title;
   @JsonKey(name: 'title_jpn')
   final String titleJpn;
diff --git a/lib/api/eh.g.dart b/lib/api/eh.g.dart
index 8897465..bb653e7 100644
--- a/lib/api/eh.g.dart
+++ b/lib/api/eh.g.dart
@@ -31,7 +31,7 @@ GalleryMetadataSingle _$GalleryMetadataSingleFromJson(
     GalleryMetadataSingle(
       gid: (json['gid'] as num).toInt(),
       token: json['token'] as String,
-      archiverKey: json['archiver_key'] as String,
+      archiverKey: json['archiver_key'] as String?,
       title: json['title'] as String,
       titleJpn: json['title_jpn'] as String,
       category: json['category'] as String,