diff --git a/segafs/makesegafs.py b/segafs/makesegafs.py
index 2a4ae4d..85614d7 100644
--- a/segafs/makesegafs.py
+++ b/segafs/makesegafs.py
@@ -129,7 +129,7 @@ BootID = Struct(
     "derive_iv" / Int8ul,
     "game_id" / Bytes(4),
     "game_timestamp" / Timestamp,
-    "game_version" / IfThenElse(lambda ctx: ctx.type == 0x0201, Bytes(4), Version),
+    "game_version" / IfThenElse(lambda ctx: ctx.type == 0x02, Bytes(4), Version),
     "block_count" / Int64ul,
     "block_size" / Int64ul,
     "header_block_count" / Int64ul,
@@ -149,7 +149,7 @@ def get_page_iv(iv: bytes, offset: int):
 
 iv = secrets.token_bytes(16)
 
-if BOOTID["type"] == 0x0201:
+if BOOTID["type"] == 0x02:
     iv = bytes(x ^ EXFAT_HEADER[i] ^ OPTION_IV[i] for (i, x) in enumerate(iv))
 
 print(f"Generated IV: {iv.hex()}")