From a228b163142cc6ca8fbc1bdba15da2b4462365eb Mon Sep 17 00:00:00 2001
From: HeroponRikiBestest
 <50224630+HeroponRikiBestest@users.noreply.github.com>
Date: Thu, 4 Dec 2025 08:46:13 -0700
Subject: [PATCH] Fix GCF extraction (#48)

---
 SabreTools.Serialization/Readers/GCF.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SabreTools.Serialization/Readers/GCF.cs b/SabreTools.Serialization/Readers/GCF.cs
index ad0a2005..79c50cf6 100644
--- a/SabreTools.Serialization/Readers/GCF.cs
+++ b/SabreTools.Serialization/Readers/GCF.cs
@@ -304,7 +304,7 @@ namespace SabreTools.Serialization.Readers
                 #endregion
 
                 // Seek to end of checksum section, just in case
-                data.SeekIfPossible(afterMapPosition + checksumHeader.ChecksumSize, SeekOrigin.Begin);
+                data.SeekIfPossible(initialOffset + checksumHeader.ChecksumSize, SeekOrigin.Begin);
 
                 #region Data Block Header