diff --git a/arch/arm/core/Kconfig b/arch/arm/core/Kconfig
index 1e2c08358f3..ddd1eed067c 100644
--- a/arch/arm/core/Kconfig
+++ b/arch/arm/core/Kconfig
@@ -99,7 +99,6 @@ depends on ARM_SECURE_FIRMWARE
 config ARM_FIRMWARE_HAS_SECURE_ENTRY_FUNCS
 	bool "Secure Firmware has Secure Entry functions"
 	depends on ARM_SECURE_FIRMWARE
-	default n
 	help
 	  Option indicates that ARM Secure Firmware contains
 	  Secure Entry functions that may be called from
diff --git a/arch/arm/core/cortex_m/tz/Kconfig b/arch/arm/core/cortex_m/tz/Kconfig
index 2a4a64724d4..abd58f7a7f8 100644
--- a/arch/arm/core/cortex_m/tz/Kconfig
+++ b/arch/arm/core/cortex_m/tz/Kconfig
@@ -8,6 +8,5 @@
 
 config ARM_SAU
 	bool "ARM Security Attribution Unit"
-	default n
 	help
 	  MCU implements the ARM Security Attribution Unit (SAU).