diff --git a/package/xenomai/Config.in b/package/xenomai/Config.in
index b655733528..e39a550416 100644
--- a/package/xenomai/Config.in
+++ b/package/xenomai/Config.in
@@ -110,6 +110,8 @@ endchoice
 config BR2_PACKAGE_XENOMAI_ENABLE_SMP
 	bool "Enable SMP support"
 	default y
+	# SMP not supported below armv6
+	depends on !BR2_ARM_CPU_ARMV4 && !BR2_ARM_CPU_ARMV5
 	help
 	  This option enables SMP support in Xenomai userspace.