diff --git a/arch/Kconfig b/arch/Kconfig
index 9286e2ebc7..bc90112de2 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -53,6 +53,7 @@ config ARCH_SH
 
 config ARCH_SIM
 	bool "Simulation"
+	select ARCH_HAVE_MULTICPU
 	select ARCH_HAVE_TICKLESS
 	select ARCH_HAVE_POWEROFF
 	---help---
diff --git a/arch/sim/src/up_head.c b/arch/sim/src/up_head.c
index 0ce28c5e39..68f34f6e99 100644
--- a/arch/sim/src/up_head.c
+++ b/arch/sim/src/up_head.c
@@ -153,4 +153,3 @@ int board_power_off(int status)
   longjmp(g_simabort, 1);
 }
 #endif
-