diff --git a/arch/Kconfig b/arch/Kconfig
index a5d670acffd..df1726f0221 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -107,6 +107,7 @@ config ARCH_SIM
 	select ARCH_HAVE_TICKLESS
 	select ARCH_HAVE_POWEROFF
 	select ARCH_HAVE_TESTSET
+	select ARCH_HAVE_FORK if !HOST_WINDOWS
 	select ARCH_HAVE_SETJMP
 	select ARCH_HAVE_CUSTOMOPT
 	select ARCH_HAVE_TCBINFO