diff --git a/titles/chuni/base.py b/titles/chuni/base.py
index 84989cb..4392ccc 100644
--- a/titles/chuni/base.py
+++ b/titles/chuni/base.py
@@ -809,7 +809,7 @@ class ChuniBase:
         upsert = data["upsertUserAll"]
         user_id = data["userId"]
 
-        if int(user_id) & 281479271677952 == 281479271677952:
+        if int(user_id) & (1 << 48) != 0:
             self.logger.info("Guest play, ignoring.")
             return {"returnCode": "1"}