diff --git a/src/system/boot/platform/atari_m68k/shell.S b/src/system/boot/platform/atari_m68k/shell.S
index 22581066d2..3f89e38f59 100644
--- a/src/system/boot/platform/atari_m68k/shell.S
+++ b/src/system/boot/platform/atari_m68k/shell.S
@@ -58,7 +58,7 @@ _bs_entry:
 	.byte	0x00//0x02	//NFATS
 	.byte	0x00/*70*/, 0x00	//NDIRS
 	.byte	0xa0, 0x05		//NSECTS
-	.byte	0xf8			//MEDIA
+	.byte	0xf9			//MEDIA
 	.byte	0x05, 0x00		//SPF
 	.byte	0x09, 0x00		//SPT
 	.byte	0x02, 0x00		//NSIDES