diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a4168d366127..4cad67b9ec0a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -792,8 +792,7 @@ config SCHED_SMT
 config NR_CPUS
 	int "Maximum number of CPUs (2-4096)"
 	range 2 4096
-	# These have to remain sorted largest to smallest
-	default "64"
+	default "256"
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs"