diff --git a/worlds/zillion/patch.py b/worlds/zillion/patch.py
index 0eee3315..e28d70f1 100644
--- a/worlds/zillion/patch.py
+++ b/worlds/zillion/patch.py
@@ -1,5 +1,5 @@
 import os
-from typing import BinaryIO
+from typing import Any, BinaryIO
 import zipfile
 
 from typing_extensions import override
@@ -46,9 +46,10 @@ class ZillionPatch(APAutoPatchInterface):
                                 compress_type=zipfile.ZIP_DEFLATED)
 
     @override
-    def read_contents(self, opened_zipfile: zipfile.ZipFile) -> None:
-        super().read_contents(opened_zipfile)
+    def read_contents(self, opened_zipfile: zipfile.ZipFile) -> dict[str, Any]:
+        manifest = super().read_contents(opened_zipfile)
         self.gen_data_str = opened_zipfile.read("gen_data.json").decode()
+        return manifest
 
     @override
     def patch(self, target: str) -> None: