diff --git a/src/stm32/Kconfig b/src/stm32/Kconfig
index 25ee8c7d..1c101e4f 100644
--- a/src/stm32/Kconfig
+++ b/src/stm32/Kconfig
@@ -76,13 +76,13 @@ config STACK_SIZE
     default 512
 
 choice
-    prompt "Bootloader offset"
+    prompt "Bootloader offset" if MACH_STM32F407 || MACH_STM32F103
     config STM32_FLASH_START_2000
         bool "8KiB bootloader (stm32duino)" if MACH_STM32F103
     config STM32_FLASH_START_7000
         bool "28KiB bootloader" if MACH_STM32F103
     config STM32_FLASH_START_8000
-        bool "32KiB bootloader (SKR-PRO)" if MACH_STM32F4
+        bool "32KiB bootloader (SKR-PRO)" if MACH_STM32F407
     config STM32_FLASH_START_0000
         bool "No bootloader"
 endchoice