diff --git a/src/stm32/Kconfig b/src/stm32/Kconfig
index 707215ec..cb0fd557 100644
--- a/src/stm32/Kconfig
+++ b/src/stm32/Kconfig
@@ -54,14 +54,12 @@ config CLOCK_FREQ
 config FLASH_SIZE
     hex
     default 0x10000 if MACH_STM32F103
-    default 0x80000 if MACH_STM32F405 || MACH_STM32F407
-    default 0x80000 if MACH_STM32F446
+    default 0x80000 if MACH_STM32F4
 
 config RAM_SIZE
     hex
     default 0x5000 if MACH_STM32F103
-    default 0x30000 if MACH_STM32F405 || MACH_STM32F407
-    default 0x20000 if MACH_STM32F446
+    default 0x20000 if MACH_STM32F4
 
 config STACK_SIZE
     int