diff --git a/arcaea_apk_assets/__init__.py b/arcaea_apk_assets/__init__.py
index b29cac8..4d1ad79 100644
--- a/arcaea_apk_assets/__init__.py
+++ b/arcaea_apk_assets/__init__.py
@@ -1,4 +1,4 @@
-from .aseets import (
+from .assets import (
     ArcaeaApkAsset,
     ArcaeaApkAssetJacket,
     ArcaeaApkAssetList,
diff --git a/arcaea_apk_assets/aseets.py b/arcaea_apk_assets/assets.py
similarity index 100%
rename from arcaea_apk_assets/aseets.py
rename to arcaea_apk_assets/assets.py
diff --git a/arcaea_apk_assets/parsers/defs.py b/arcaea_apk_assets/parsers/defs.py
index 6dfbb73..68ad530 100644
--- a/arcaea_apk_assets/parsers/defs.py
+++ b/arcaea_apk_assets/parsers/defs.py
@@ -106,6 +106,7 @@ class Difficulty:
     bg: Optional[str] = None
     version: Optional[str] = None
     title: Optional[str] = None
+    artist: Optional[str] = None
     is_legacy11: bool = False
 
 
diff --git a/arcaea_apk_assets/processor.py b/arcaea_apk_assets/processor.py
index 48e2253..d63b5ca 100644
--- a/arcaea_apk_assets/processor.py
+++ b/arcaea_apk_assets/processor.py
@@ -19,7 +19,7 @@ this program. If not, see <https://www.gnu.org/licenses/>.
 import zipfile
 from typing import Any, ClassVar, Optional
 
-from .aseets import (
+from .assets import (
     ArcaeaApkAsset,
     ArcaeaApkAssetJacket,
     ArcaeaApkAssetList,