diff --git a/Aaru.Filesystems/Acorn.cs b/Aaru.Filesystems/Acorn.cs
index 3dc94298e..4f4d2332a 100644
--- a/Aaru.Filesystems/Acorn.cs
+++ b/Aaru.Filesystems/Acorn.cs
@@ -443,7 +443,7 @@ namespace Aaru.Filesystems
             }
             else if(bootChk == bootSector[0x1FF])
             {
-                BootBlock bBlock = Marshal.ByteArrayToStructureLittleEndian<BootBlock>(sector);
+                BootBlock bBlock = Marshal.ByteArrayToStructureLittleEndian<BootBlock>(bootSector);
                 drSb = bBlock.discRecord;
             }
             else