diff --git a/thinkpad_unlock_bios.c b/thinkpad_unlock_bios.c
index 9886546..559fafd 100644
--- a/thinkpad_unlock_bios.c
+++ b/thinkpad_unlock_bios.c
@@ -20,8 +20,8 @@ const char bios_head_X260[32]=
 
 struct mac_tab x250_mac=
 {
-	0,
-	{0}
+	2,
+	{0x1000,0x2000}
 };
 struct mac_tab x260_mac=
 {
diff --git a/thinkpad_unlock_bios.exe b/thinkpad_unlock_bios.exe
index 25f9d28..b268757 100644
Binary files a/thinkpad_unlock_bios.exe and b/thinkpad_unlock_bios.exe differ