diff --git a/src/fat_adv.c b/src/fat_adv.c
index 4742c673..812efad2 100644
--- a/src/fat_adv.c
+++ b/src/fat_adv.c
@@ -2946,7 +2946,7 @@ static int write_FAT_boot_code_aux(unsigned char *buffer)
   const unsigned char boot_code[DEFAULT_SECTOR_SIZE]= {
     0xeb, 0x3c, 0x90, 0x6d, 0x6b, 0x64, 0x6f, 0x73, 0x66, 0x73, 0x00, 0x00, 0x02, 0x08, 0x01, 0x00,
     0x02, 0x00, 0x02, 0x00, 0x00, 0xf8, 0xcc, 0x00, 0x3f, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x5a, 0x5f, 0x06, 0x00, 0x00, 0x00, 0x29, 0xf8, 0x3f, 0x7c, 0x3e, 'T',   'E',   'S', 'T',  'D',
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0xf8, 0x3f, 0x7c, 0x3e, 'T',   'E',   'S', 'T',  'D',
      'I',  'S',  'K', 0x20, 0x20, 0x20, 0x46, 0x41, 0x54, 0x31, 0x36, 0x20, 0x20, 0x20, 0x0e, 0x1f,
     0xbe, 0x5b, 0x7c, 0xac, 0x22, 0xc0, 0x74, 0x0b, 0x56, 0xb4, 0x0e, 0xbb, 0x07, 0x00, 0xcd, 0x10,
     0x5e, 0xeb, 0xf0, 0x32, 0xe4, 0xcd, 0x16, 0xcd, 0x19, 0xeb, 0xfe,  'T', 'h',   'i',  's',  ' ',