diff --git a/radio/src/targets/common/arm/stm32/bootloader/boot.cpp b/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
index f18b6d22a..6c99d7341 100644
--- a/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
+++ b/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
@@ -44,7 +44,7 @@
 #if defined(PCBXLITE)
   #define BOOTLOADER_KEYS                 0x0F
 #elif defined(RADIO_MT12)
-  #define BOOTLOADER_KEYS                 0x09
+  #define BOOTLOADER_KEYS                 0x06
 #else
   #define BOOTLOADER_KEYS                 0x42
 #endif