diff --git a/core/adb_handlers/felica.py b/core/adb_handlers/felica.py
index a037bbe..bd10708 100644
--- a/core/adb_handlers/felica.py
+++ b/core/adb_handlers/felica.py
@@ -39,7 +39,7 @@ class ADBFelicaLookupExRequest(ADBBaseRequest):
     def __init__(self, data: bytes) -> None:
         super().__init__(data)
         self.random = struct.unpack_from("<16s", data, 0x20)[0]
-        idm, dfc = struct.unpack_from(">QQ", data, 0x30)
+        idm, dfc, self.arbitrary = struct.unpack_from(">QH6s", data, 0x30)
         self.card_key_ver, self.write_ct, self.maca, company, fw_ver, self.dfc = struct.unpack_from("<16s16sQccH", data, 0x40)
         self.idm = hex(idm)[2:].upper()
         self.dfc = hex(dfc)[2:].upper()